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