m=8;
n=6;
students=[|0,94,11,25,24,51|
15,13,39,67,97,19|
76,12,33,99,18,92|
35,74,0,95,71,39|
33,39,32,37,45,57|
71,95,5,71,24,86|
8,51,54,74,24,75|
70,33,63,29,99,0|];