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

    return 0;
}