#include<stdio.h>

int main()
{
    int n,m,num,a;
    scanf("%d",&n);
    scanf("%d",&m);
    scanf("%d",&num);
    
    if (num!=0 && num!=1)
    {
        printf("Invalid input");
    }
    else 
    {
        for (int i=0; i<n; i++) 
        {
            for (int j=0; j<n; j++)
            {
                printf("0",a[i][j]); 
            }
            printf("\n");
        }
        return 0;
    }
    
}