using System;
using System.Linq;
public class Test
{
public static void Main()
{
foreach(var n in Enumerable.Range(0, 9))
{
Console.WriteLine((n % 3).ToString() + ", " + (n / 3).ToString());
}
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uTGlucTsKCnB1YmxpYyBjbGFzcyBUZXN0CnsKCXB1YmxpYyBzdGF0aWMgdm9pZCBNYWluKCkKCXsKCQlmb3JlYWNoKHZhciBuIGluIEVudW1lcmFibGUuUmFuZ2UoMCwgOSkpCgkJewoJCQlDb25zb2xlLldyaXRlTGluZSgobiAlIDMpLlRvU3RyaW5nKCkgKyAiLCAiICsgKG4gLyAzKS5Ub1N0cmluZygpKTsKCQl9Cgl9Cn0=
0, 0
1, 0
2, 0
0, 1
1, 1
2, 1
0, 2
1, 2
2, 2