#include <stdio.h>

int main()
{
    for (int a = 0; a <= 2; a++)
    {
        for (int b = 0; b <= 2; b++)
        {
            for (int c = 0; c <= 2; c++)
            {
                printf("%d %d %d\n", a, b, c);
            }
        }
    }
    
    return 0;
}