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