#include<bits/stdc++.h>
using namespace std;
using LL=long long;
using ULL=unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main(){
  LL X,Y,Z; cin>>X>>Y>>Z;
  if((X+Y+Z)%3!=0) cout<<"No"<<endl;
  else cout<<"Yes"<<endl;
  return 0;
}