#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
  int x, y, z;
  cin >> x >> y >> z;
  if((x+y+z)%3!=0){
    cout << "No" << endl;
    return 0;
  }
  else cout << "Yes" << endl;
  return 0;
}