The first line contains three integers n,m,kn,m,kn,m,k ,meaning as in the title(1≤n,m≤50,0≤k≤50)(1 \leq n,m \leq 50, 0 \leq k \leq 50)(1≤n,m≤50,0≤k≤50). Then the NNN × NNN matrix follows.

是的，谢谢，应该是n*m