Input csv-file

7,7,7,7,7,7,7,7,7,7,6,7,6,7,7,7,7
6,7,10,7,7,6,6,10,7,6,7,6,6,6,7,7,7
1,0,3,5,5,2,5,4,0,4,0,2,1,0,0,2,2
4,5,7,10,9,7,7,11,00,6,7,7,7,11,01,00,6
6,7,7,10,7,7,7,7,10,"n",7,"n",7,7,10,"n",7
5,7,7,7,7.5,7,7,7,7,6,6,6,6,7,7.5,7,5.5
1,00,7,10,9,0,9,10,6,7,0,7,0,8,1,10,7
2,4,4,6,7,6,6,10,7,6,4,7,"n",7,7,"n",6
6,6,6,2,4,6,4,7,7,6,7,7,"n",10,7,11,00
2,7,8,10,7,5,8,10,9,7,7,7,5,4,7,7,7
4,7,11,00,7,7,11,01,00,7,4,10,6,6,7,10,7
0,0,2,0,0,0,0,6,0,4,0,4,0,0,0,"n",10
11,00,7,7,7,7,7,10,7,7,10,7,7,7,7,7,10
11,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,00
2,4,4,2,2,4,2,4,4,4,2,4,2,6,4,6,4
5,6,7,7,6,6,7,7,7,7,6,7,7,7,7,7,7
11,01,01,01,01,01,01,01,01,01,01,01,01,01,01,01,00
0,0,0,7,0,0,0,2,2,0,0,0,2,6,0,"n",2
3,7,7,6,7,3,2,3,5,2,4,6,3,3,4,6,6
7,5,6,7,7,7,7,7,7,5,4,6,6,"n",5,"n","n"
5,6,4,6,6,6,5,7,5,4,3,5,5,"n",6,"n","n"
11,00,7,10,9,7,7,10,7,8,10,9,9,9,9,9,9
10,4,6,10,2,7,6,10,7,6,7,7,"n",7,10,"n",2
4,7,7,7,6,4,4,10,7,6,6,6,7,7,7,7,7
2,4,6,4,2,4,4,6,6,4,4,4,2,6,6,"n",2
2,2,6,2,2,2,2,10,4,2,0,3,2,2,4,10,0
6,4,5,2,2,6,5,10,6,6,7,4,11,00,7,7,4
6,7,6,4,2,2,0,2,0,6,2,2,7,8,1,2,2
4,2,3,3,2,4,4,5,5,4,5,5,5,6,5,4,5
2,7,7,7,7,6,6,7,7,7,4,7,6,7,7,"n",7
6,9,9,10,9,9,9,11,00,8,10,9,9,9,10,"n",9
7,7,6,"n",5,5,5,5,5,4,3,5,4,4,5,4,"n"
7,7,7,6,6,7,7,11,00,6,7,7,7,6,7,7,6
6,7,4,6,6,4,"n",10,9,3,7.5,4,2,4,9,"n",3
7,7,7,7,7,7,7,11,00,7,10,"n",7,7,10,"n","n"
7,8,11,01,01,01,01,01,00,7,11,01,01,01,01,00,7
7,6,7,10,7,7,7,11,00,7,6,7,7,7,10,"n",7
7,7,7,7,7,7,7,8,10,8,10,7,"n","n",7,"n","n"
3,4,7,7,7,7,7,7,8,1,5,4,5,6,6,5,5
4,6,4,7,8,1,2,4,2,4,4,6,6,6,2,"n",6
0,6,6,0,0,0,0,0,0,0,0,"n",0,0,0,4,6
2,6,6,4,2,4,4,4,2,2,2,2,6,6,6,6,6
1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
1,00,3,2,0,0,0,0,8,1,0,0,"n",2,0,0,"n"
7,11,01,01,01,01,01,01,01,01,01,01,01,01,01,01,00
6,7,"n","n",7,7,"n",7,7,"n",7,"n","n","n",7,"n",7
7,7,6,11,00,6,6,10,6,7,10,9,"n","n",11,01,00
4,6,6,"n",6,6,6,11,00,7,4,6,6,6,6,"n",4
1,00,7,10,7,11,01,01,00,"n","n","n","n",11,00,"n",7
5,7,11,00,8,1,3,10,2,4,5,7,"n","n",11,00,7
2,4,7,4,9,2,6,7,7,4,0,"n",1,4,0,"n",4
4,8,1,2,2,2,0,6,2,2,0,2,7,8,1,"n",6
2,7,6,6,4,4,4,7,4,4,2,4,2,4,6,2,4
2,2,4,6,6,2,"n","n",6,2,4,"n",4,4,6,"n",4
4,2,2,11,0,4,3,10,4,5,2,7,"n",5,7,4,4
4,4,4,6,4,4,"n",6,6,4,4,6,4,"n",6,"n",6
0,0,0,6,0,0,0,2,6,0,0,0,2,2,0,4,0
0,2,4,6,6,6,4,2,6,4,0,6,2,4,6,2,6
7,4,7,7,6,7,6,10,7,10,7,10,"n",7,10,"n",6
2,11,00,7,10,5,9,9,10,7,5,10,8,10,9,"n",9
5,3,4,7,5,2,4,2,2,4,2,4,5,"n",3,"n","n"
5,6,5,7,3,2,3,2,2,4,3,5,6,6,4,"n",6
4,6,4,7,6,4,6,2,4,5,4,6,6,5,6,4,6
5,9,7,7,7,6,7,7,7,7,6,7,5,8,11,00,7
5,6,8,10,7,6,"n",10,9,"n","n","n","n","n",10,"n",7
4,6,6,6,6,6,6,7,7,6,4,6,"n",6,6,"n",6
6,7,11,01,00,7,7,11,01,00,7,11,01,00,7,10,7
10,7,11,00,7,11,01,01,01,01,01,00,7,11,00,7,7
4,6,6,2,2,4,3,4,6,5,2,6,4,5,4,4,2
6,6,8,1,6,4,7,6,9,7,7,7,7,7,7,"n",7
1,8,1,7,7,1,4,9,3,2,2,"n",2,"n",3,"n","n"
0,2,2,0,0,0,2,7,0,2,0,2,2,4,0,"n",4
3,5,2,4,1,0,3,7,0,4,1,4,2,4,0,5,5
10,9,"n","n",1,2,2,2,"n","n","n","n","n",10,"n","n",3
9,5,6,6,5,5,5,4,4,7,6,6,9,7,7,7,5
7,6,7,11,00,7,7,11,00,6,6,6,"n",11,01,00,7
7,8,10,9,9,"n","n",11,00,8,10,"n",10,7,10,"n","n"
4,9,7,10,8,1,5,7,7,10,4,7,4,4,10,7,7
2.5,7,7,6,10,4,6,10,7,8,1,10,4,10,7,10,7
4,6,6,7,6,4,6,7,7,6,4,6,4,7,6,7,6
4,10,7,11,00,4,7,10,6,7,4,7,4,10,6,7,6
9,5,2,7,4,6,4,6,4,3,4,5,"n",7,4,"n","n"
7,7,6,6,3,4,6,4,4,6,6,5,7,7,6,"n",6
11,00,7,10,6,6,6,4,10,7,7,7,"n",7,10,"n",9
8,10,7.5,10,7,7,7.7,10,9,7,7.7,7,7,6.5,7.5,10,"n"
1,7,6,7,8,1,5,7,6,4,2,4,4,7,6,"n",6
4,6,7,7,0,6,6,10,4,5,6,7,5,7,10,7,4
4,6,6,5,6,4.5,5.5,5.5,6,5,4.5,4.5,6,5.5,6,"n","n"
7,4,6,7,6,6,2,6,7,4,5,6,7,7,8,1,3
7,6,4,10,6,2,2,8,1,5,6,"n",6,7,3,"n","n"
7,4,4,10,0,7,6,10,7,4,4,7,10,7,7,10,2
0,7,7,10,2,2,7,7,10,5,0,5,0,7,7,8,1
0,5,7,8,1,1,6,6,7,4,0,4,2,2,6,7,6
7,7,7,7,7,7,7,8,10,7,7,7,7,7,7,7,7
4,6,6,8,1,4,4,7,7,8,1,10,4,7,4,"n",4
7,10,7,10,7,8,11,01,00,7,8,10,7,7,7,10,9
7,11,01,00,7,6,6,7,11,00,7,7,7,11,00,"n",10
6,7,8,10,7,7,"n",10,7,7,6,7,6,9,9,9,7
3,6,7,5,5,5,5,10,9,6,6,6,4,5,7,10,2
7,10,5,10,9,5,"n",10,4,5,4,"n","n",7,7,"n","n"