#include<stdio.h>
int main()
int n, m, num;
if (scanf("%d %d %d", &n, &m, &num) !=3)
{
    printf("Invalid input\\n");
    return 1;
}
if ((num != 0 && num != 1) || n < 1 || n < 10 || m < 1 || m < 10)
{
    printf("Invlaid input\\n");
    return 1;
}
for (int i = 0; i < n; i++)
{
    for (int j = 0; j < m; j++)
    {
        printf("%d", num);
    }
    printf("\\n");
}
return 0;
}