Lai Châu weather in December

In December, Lai Châu sees average daytime highs of 19°C and overnight lows near 11°C, with 49 mm of rain across 7.4 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 18°C by the end. The sky is clear or mostly clear about 33% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of December to 10 h 36 min by month's end. Set against the rest of the year, December is Lai Châu's 5th-clearest and 6th-windiest month. For the whole year in context, see Lai Châu's year-round climate.

Daytime high: 19°; 11th warmest
Overnight low: 11°; 3rd coldest
Rainfall: 49 mm; 7.4 wet days
Daylight: 10 h 36 min; 6:43 AM – 5:21 PM
Cloud cover: 57%; 5th clearest
Wind: 3 km/h; 6th windiest
Solar energy: 2.75 kWh/m²
Travel score: 6.5; out of 10

← November Lai Châu year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 18°C by the end.

A typical December day in Lai Châu reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	20	20	20	20	20	20	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18
Avg low (°C)	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10

	Avg high (°C)	Avg low (°C)
1	20	12
2	20	12
3	20	12
4	20	12
5	20	12
6	20	12
7	19	12
8	19	12
9	19	12
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	10
19	19	10
20	18	10
21	18	10
22	18	10
23	18	10
24	18	10
25	18	10
26	18	10
27	18	10
28	18	10
29	18	10
30	18	10
31	18	10

Lai Châu weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	18° / 10°	63	10	10.8	5.9
Feb	20° / 11°	53	9.4	11.2	6.4
Mar	24° / 14°	106	13.8	11.8	6.5
Apr	26° / 17°	136	18.7	12.5	5.4
May	27° / 20°	222	24.4	13.1	4.3
Jun	28° / 21°	325	28.5	13.3	3.4
Jul	27° / 22°	389	29.5	13.2	3.4
Aug	28° / 21°	371	28.7	12.8	3.5
Sep	27° / 20°	201	22.2	12.1	4.5
Oct	25° / 18°	96	15	11.5	6.0
Nov	22° / 14°	50	8.7	10.9	6.9
Dec	19° / 11°	49	7.4	10.7	6.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	48	48	47	46	45	45	45	45	45	46	47	47	49	50	51	53	54	54	55	55	55	55	56	56	56	55	55	54	53	52	51
Cloudier (%)	52	52	53	54	55	55	55	55	55	54	53	53	51	50	49	47	46	46	45	45	45	45	44	44	44	45	45	46	47	48	49

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	47	53
4	46	54
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	46	54
11	47	53
12	47	53
13	49	51
14	50	50
15	51	49
16	53	47
17	54	46
18	54	46
19	55	45
20	55	45
21	55	45
22	55	45
23	56	44
24	56	44
25	56	44
26	55	45
27	55	45
28	54	46
29	53	47
30	52	48
31	51	49

Chance of precipitation in December

Any precipitation

Lai Châu gets around 49 mm of rain over 7.4 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 29% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	29	29	29	29	29	28	28	27	27	26	25	24	23	22	22	21	20	20	19	19	20	20	20	21	21	22	23	23	24	25	26

	Rain chance (%)
1	29
2	29
3	29
4	29
5	29
6	28
7	28
8	27
9	27
10	26
11	25
12	24
13	23
14	22
15	22
16	21
17	20
18	20
19	19
20	19
21	20
22	20
23	20
24	21
25	21
26	22
27	23
28	23
29	24
30	25
31	26

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	48	51	52	54	56	58	59	62	64	65	67	68	71	72	73	74	75	77	78	79	79	80	81	82	82	83	84	84	84	84	83
Comfortable (%)	41	40	39	38	37	36	35	33	32	31	30	29	27	26	25	24	23	22	21	20	20	19	18	17	17	16	16	16	16	16	16
Humid (%)	10	9	9	8	7	6	6	5	4	4	3	3	2	2	2	2	2	1	1	1	1	1	1	1	1	1	0	0	0	0	1

	Dry (%)	Comfortable (%)	Humid (%)
1	48	41	10
2	51	40	9
3	52	39	9
4	54	38	8
5	56	37	7
6	58	36	6
7	59	35	6
8	62	33	5
9	64	32	4
10	65	31	4
11	67	30	3
12	68	29	3
13	71	27	2
14	72	26	2
15	73	25	2
16	74	24	2
17	75	23	2
18	77	22	1
19	78	21	1
20	79	20	1
21	79	20	1
22	80	19	1
23	81	18	1
24	82	17	1
25	82	17	1
26	83	16	1
27	84	16	0
28	84	16	0
29	84	16	0
30	84	16	0
31	83	16	1

Wind in December

Winds average 3 km/h in December.

Across December, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	3	calm
20	3	calm
21	3	calm
22	3	calm
23	3	calm
24	3	calm
25	3	calm
26	3	calm
27	3	calm
28	3	calm
29	3	calm
30	3	calm
31	3	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 42 min at the start of December to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:34 AM to 6:50 AM, and sunset from 5:18 PM to 5:29 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6
Sunrise (AM)	6:34	6:35	6:35	6:36	6:37	6:37	6:38	6:39	6:39	6:40	6:40	6:41	6:42	6:42	6:43	6:43	6:44	6:44	6:45	6:45	6:46	6:46	6:47	6:47	6:48	6:48	6:48	6:49	6:49	6:50	6:50
Sunset (PM)	5:18	5:18	5:18	5:18	5:18	5:18	5:19	5:19	5:19	5:19	5:20	5:20	5:20	5:21	5:21	5:21	5:22	5:22	5:23	5:23	5:24	5:24	5:24	5:25	5:25	5:26	5:26	5:27	5:28	5:28	5:29

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.7	6:34	5:18
2	10.7	6:35	5:18
3	10.7	6:35	5:18
4	10.7	6:36	5:18
5	10.7	6:37	5:18
6	10.7	6:37	5:18
7	10.7	6:38	5:19
8	10.7	6:39	5:19
9	10.7	6:39	5:19
10	10.7	6:40	5:19
11	10.7	6:40	5:20
12	10.7	6:41	5:20
13	10.6	6:42	5:20
14	10.6	6:42	5:21
15	10.6	6:43	5:21
16	10.6	6:43	5:21
17	10.6	6:44	5:22
18	10.6	6:44	5:22
19	10.6	6:45	5:23
20	10.6	6:45	5:23
21	10.6	6:46	5:24
22	10.6	6:46	5:24
23	10.6	6:47	5:24
24	10.6	6:47	5:25
25	10.6	6:48	5:25
26	10.6	6:48	5:26
27	10.6	6:48	5:26
28	10.6	6:49	5:27
29	10.6	6:49	5:28
30	10.6	6:50	5:28
31	10.6	6:50	5:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.75 kWh/m².

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 4.99 kWh/m² in April across the year — December's 2.75 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.8	2.8	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.9	2.9	2.9	2.9	2.9	2.8	2.8	2.8	2.8	2.8	2.8
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.8	Moderate
2	2.8	Moderate
3	2.7	Moderate
4	2.7	Moderate
5	2.7	Moderate
6	2.7	Moderate
7	2.7	Moderate
8	2.7	Moderate
9	2.7	Moderate
10	2.7	Moderate
11	2.7	Moderate
12	2.7	Moderate
13	2.7	Moderate
14	2.8	Moderate
15	2.8	Moderate
16	2.8	Moderate
17	2.8	Moderate
18	2.8	Moderate
19	2.8	Moderate
20	2.8	Moderate
21	2.9	Moderate
22	2.9	Moderate
23	2.9	Moderate
24	2.9	Moderate
25	2.9	Moderate
26	2.8	Moderate
27	2.8	Moderate
28	2.8	Moderate
29	2.8	Moderate
30	2.8	Moderate
31	2.8	Moderate

Planning a trip in December

Hazard calendar for Lai Châu

In seasonPeak

None of Lai Châu's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Lai Châu's monsoon runs May–September, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Lai Châu?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5

Sightseeing

2nd-best month of the year

2.7

Beach & pool

11th-best month of the year

December is a reasonable time to visit Lai Châu for sightseeing.

What to pack for Lai Châu in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Lai Châu sees daytime highs around 19°C and nights near 11°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Lai Châu in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lai Châu peaks around June 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	7	9	11	9	11	14	13	12	10	9	8	5
Level	High	Very high	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	High

	UV index (midday)	Level
Jan	7	High
Feb	9	Very high
Mar	11	Extreme
Apr	9	Very high
May	11	Extreme
Jun	14	Extreme
Jul	13	Extreme
Aug	12	Extreme
Sep	10	Very high
Oct	9	Very high
Nov	8	Very high
Dec	5	High

Air quality in Lai Châu in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Lai Châu is worst in April — around 70 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (July, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	25	33	54	70	28	15	14	15	18	22	23	25
Level	Moderate	Moderate	Poor	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	25	Moderate
Feb	33	Moderate
Mar	54	Poor
Apr	70	Unhealthy
May	28	Moderate
Jun	15	Moderate
Jul	14	Moderate
Aug	15	Moderate
Sep	18	Moderate
Oct	22	Moderate
Nov	23	Moderate
Dec	25	Moderate

Location & terrain

Where is Lai Châu?

Lai Châu sits at 22.4°N, 103.5°E, 919 m above sea level, in Vietnam. The nearest listed city is Sapa, 40 km away.

Topography around Lai Châu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lai Châu.

Within 3 km, the terrain around Lai Châu has significant variations in elevation — a maximum elevation change of 544 m around an average of 1,001 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,836 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,035 m.

The land around Lai Châu is covered by trees (43%) and grassland (32%) within 3 km, trees (74%) within 16 km, and trees (85%) within 80 km.

3 km

544 m

trees 43%

16 km

2,836 m

trees 74%

80 km

3,035 m

trees 85%

treesgrasslandcroplandartificial surfaceswater

← November Lai Châu year-round climate January →Best places to visit in December

December weather nearby: Sapa 40 km · Lào Cai 54 km · Mường Lay 55 km · Thị Trấn Phố Lu 75 km · Thị Trấn Thuận Châu 109 km · Ít Ong 114 km · Dien Bien Phu 121 km · Sơn La 128 km

Vietnam travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B / C / F; 220 V · 50 Hz
Prices: ≈ 29% of US; price level, 2025
GDP per capita: $5,066; 2025
Happiness: 6.4 / 10; World Happiness, 2025
Safe drinking water: 59%; of population, 2024
Homicide rate: 1.5; per 100k, 2011
Road deaths: 30.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 500
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lai Châu (22.3964°, 103.4582°, elevation 919 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	20	12
2	20	12
3	20	12
4	20	12
5	20	12
6	20	12
7	19	12
8	19	12
9	19	12
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	10
19	19	10
20	18	10
21	18	10
22	18	10
23	18	10
24	18	10
25	18	10
26	18	10
27	18	10
28	18	10
29	18	10
30	18	10
31	18	10

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	47	53
4	46	54
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	46	54
11	47	53
12	47	53
13	49	51
14	50	50
15	51	49
16	53	47
17	54	46
18	54	46
19	55	45
20	55	45
21	55	45
22	55	45
23	56	44
24	56	44
25	56	44
26	55	45
27	55	45
28	54	46
29	53	47
30	52	48
31	51	49

	Rain chance (%)
1	29
2	29
3	29
4	29
5	29
6	28
7	28
8	27
9	27
10	26
11	25
12	24
13	23
14	22
15	22
16	21
17	20
18	20
19	19
20	19
21	20
22	20
23	20
24	21
25	21
26	22
27	23
28	23
29	24
30	25
31	26

	Dry (%)	Comfortable (%)	Humid (%)
1	48	41	10
2	51	40	9
3	52	39	9
4	54	38	8
5	56	37	7
6	58	36	6
7	59	35	6
8	62	33	5
9	64	32	4
10	65	31	4
11	67	30	3
12	68	29	3
13	71	27	2
14	72	26	2
15	73	25	2
16	74	24	2
17	75	23	2
18	77	22	1
19	78	21	1
20	79	20	1
21	79	20	1
22	80	19	1
23	81	18	1
24	82	17	1
25	82	17	1
26	83	16	1
27	84	16	0
28	84	16	0
29	84	16	0
30	84	16	0
31	83	16	1

	Avg high (°C)	Avg low (°C)
1	20	12
2	20	12
3	20	12
4	20	12
5	20	12
6	20	12
7	19	12
8	19	12
9	19	12
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	10
19	19	10
20	18	10
21	18	10
22	18	10
23	18	10
24	18	10
25	18	10
26	18	10
27	18	10
28	18	10
29	18	10
30	18	10
31	18	10

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	47	53
4	46	54
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	46	54
11	47	53
12	47	53
13	49	51
14	50	50
15	51	49
16	53	47
17	54	46
18	54	46
19	55	45
20	55	45
21	55	45
22	55	45
23	56	44
24	56	44
25	56	44
26	55	45
27	55	45
28	54	46
29	53	47
30	52	48
31	51	49

	Rain chance (%)
1	29
2	29
3	29
4	29
5	29
6	28
7	28
8	27
9	27
10	26
11	25
12	24
13	23
14	22
15	22
16	21
17	20
18	20
19	19
20	19
21	20
22	20
23	20
24	21
25	21
26	22
27	23
28	23
29	24
30	25
31	26

	Dry (%)	Comfortable (%)	Humid (%)
1	48	41	10
2	51	40	9
3	52	39	9
4	54	38	8
5	56	37	7
6	58	36	6
7	59	35	6
8	62	33	5
9	64	32	4
10	65	31	4
11	67	30	3
12	68	29	3
13	71	27	2
14	72	26	2
15	73	25	2
16	74	24	2
17	75	23	2
18	77	22	1
19	78	21	1
20	79	20	1
21	79	20	1
22	80	19	1
23	81	18	1
24	82	17	1
25	82	17	1
26	83	16	1
27	84	16	0
28	84	16	0
29	84	16	0
30	84	16	0
31	83	16	1

	Avg high (°C)	Avg low (°C)
1	20	12
2	20	12
3	20	12
4	20	12
5	20	12
6	20	12
7	19	12
8	19	12
9	19	12
10	19	11
11	19	11
12	19	11
13	19	11
14	19	11
15	19	11
16	19	11
17	19	11
18	19	10
19	19	10
20	18	10
21	18	10
22	18	10
23	18	10
24	18	10
25	18	10
26	18	10
27	18	10
28	18	10
29	18	10
30	18	10
31	18	10

	Clearer (%)	Cloudier (%)
1	48	52
2	48	52
3	47	53
4	46	54
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	46	54
11	47	53
12	47	53
13	49	51
14	50	50
15	51	49
16	53	47
17	54	46
18	54	46
19	55	45
20	55	45
21	55	45
22	55	45
23	56	44
24	56	44
25	56	44
26	55	45
27	55	45
28	54	46
29	53	47
30	52	48
31	51	49

	Rain chance (%)
1	29
2	29
3	29
4	29
5	29
6	28
7	28
8	27
9	27
10	26
11	25
12	24
13	23
14	22
15	22
16	21
17	20
18	20
19	19
20	19
21	20
22	20
23	20
24	21
25	21
26	22
27	23
28	23
29	24
30	25
31	26

	Dry (%)	Comfortable (%)	Humid (%)
1	48	41	10
2	51	40	9
3	52	39	9
4	54	38	8
5	56	37	7
6	58	36	6
7	59	35	6
8	62	33	5
9	64	32	4
10	65	31	4
11	67	30	3
12	68	29	3
13	71	27	2
14	72	26	2
15	73	25	2
16	74	24	2
17	75	23	2
18	77	22	1
19	78	21	1
20	79	20	1
21	79	20	1
22	80	19	1
23	81	18	1
24	82	17	1
25	82	17	1
26	83	16	1
27	84	16	0
28	84	16	0
29	84	16	0
30	84	16	0
31	83	16	1