#include <unistd.h>

void ft_print_comb(void)
{
    char a;
    char b;
    char c;

    a = '0';
	
	

	while (a <= '7')
	{
		b = a + 1;
        while (b <= '8')
		{
			c = b + 1;
            while (c <= '9')
			{
				write(1, &a, 1);
				write(1, &b, 1);
				write(1, &c, 1);
				if (a != '7')
					write(1, ", ", 2);
				c++;
			}
			b++;
		}
		a++;
	}

}

int main()
{
    ft_print_comb();
    return (0);
}