#include <bits/stdc++.h>
#define NIL (-1)
#define ll long long
using namespace std;
const double PI = acos(-1.0);

int main() {
	ll X, Y, Z;
	cin >> X >> Y >> Z;

	ll s = X + Y + Z;
	if (s % 3 == 0) cout << "Yes" << endl;
	else cout << "No" << endl;
}