#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;

int main(){
	ll a , b , c;
	cin >> a >> b >> c;
	a += 100;
	b += 100;
	c += 100;
	cout << ((a + b + c) % 3 == 0 ? "Yes" : "No") << endl;
	return 0;
}