#include<stdio.h>
int main(){
    int n,m,x,i,j;
    scanf("%d%d%d", &n, &m, &x);
    if(n <= 0 || m <= 0)x! = 0 && x!=1) {
    printf("Invalid input");return 0;}
    for(i=0;i<n;i++,printf("\n"))
      for(j=0;j<m;j++)printf("%d ",x);
}