View Code of Problem 20

#include <iostream>
#include <string>
#include <cstring>
#include <cmath>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cstdlib>
#include <queue>
using namespace std;

int main()
{
	int m, n, t, flag;
	int i, j, k;
	while (cin >> n)
	{
		if (n % 3 == 0)
			cout << "No" << endl;
		else
			cout << "Yes" << endl;
	}
	return 0;
}