#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> P;
int INF = 3e18+7;
int mod = 1e9+7;
int dx[] = {1, 0,-1, 0, 1, 1,-1,-1};
int dy[] = {0, 1, 0,-1, 1,-1, 1,-1};
signed main() {
    int X,Y,Z;
    cin >> X >> Y >> Z;
    if((X+Y+Z)%3) {
        cout << "No" << endl;
    }
    else {
        cout << "Yes" << endl;
    }
}