#include "bits/stdc++.h"
using namespace std;

using ll = long long;
using P = pair<ll, ll>;
const ll INF = (1LL << 62);
ll mod = (ll)1e9 + 7;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	ll X, Y, Z; cin >> X >> Y >> Z;
	if ((X + Y + Z) % 3 == 0)cout << "Yes" << endl;
	else cout << "No" << endl;
	return 0;
}