#include<stdio.h>
int main()
{
    int n, m, num;
   printf("Enter the number of rows (n): ");
   scanf("%d", &n);
   printf("Enter the number of columns (m): ");
   scanf("%d", &m);
   printf("Enter the binary number to fill the grid (0 or 1): ");
   scanf("%d", &num);
   if (num != 0 && num != 1)
   {
       printf("Invalid input");
       return 1;
   }
   printf("sample output 1:\n");
   for (int i = 0; i < n; i++)
   {
       for (int j =0; j < m; j++){
       printf("%d", num);
   }
   printf("\n");
   
}
return 0;