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