Level 29

You see a room which is 10x10m wide (0x0 to 9x9).
Every square has the exact temperature of 16°C. We apply continuously 188°C heat to the field 9x1
What is the temperature (rounded to whole numbers) in the field 4x8 after 66 iterations according to the Gauss-Seidel iteration

Field in the beginning

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

Field after 4 iterations (rounded after 4th iteration)

2	4	5	5	5	5	8	20	45	73
4	6	8	9	9	10	17	39	97	252
5	8	10	11	12	13	19	34	62	87
5	9	11	13	13	14	18	26	35	34
5	9	12	13	14	15	17	20	21	16
5	9	12	14	15	15	16	16	15	10
5	9	12	13	14	15	15	14	12	7
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

Temperature in field 4x8 after 66 iterations:

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	8	20	45	73
4	6	8	9	9	10	17	39	97	252
5	8	10	11	12	13	19	34	62	87
5	9	11	13	13	14	18	26	35	34
5	9	12	13	14	15	17	20	21	16
5	9	12	14	15	15	16	16	15	10
5	9	12	13	14	15	15	14	12	7
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	8	20	45	73
4	6	8	9	9	10	17	39	97	252
5	8	10	11	12	13	19	34	62	87
5	9	11	13	13	14	18	26	35	34
5	9	12	13	14	15	17	20	21	16
5	9	12	14	15	15	16	16	15	10
5	9	12	13	14	15	15	14	12	7
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2

16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16
16	16	16	16	16	16	16	16	16	16

2	4	5	5	5	5	8	20	45	73
4	6	8	9	9	10	17	39	97	252
5	8	10	11	12	13	19	34	62	87
5	9	11	13	13	14	18	26	35	34
5	9	12	13	14	15	17	20	21	16
5	9	12	14	15	15	16	16	15	10
5	9	12	13	14	15	15	14	12	7
5	8	11	12	13	13	13	12	9	5
4	6	8	9	10	10	10	9	6	3
2	3	4	5	5	5	5	4	3	2