#include <stdio.h>
void printBinarySquarePattern(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;
}