#include <stdio.h>
int main() {
    int n, m,num;
    scanf("%d %d %d", &n, &m, &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++) {
            print ("%d", num);
        }
        printf("\n");
    }
    
    return 0;
}