//#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long ull;
 
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) {
	return (ull)rng() % B;
}

constexpr ll mod=1e9+7;

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    ll x,y,z; cin >> x >> y >> z;
    if((x+y+z)%3){
        printf("No\n");
    }
    else{
        printf("Yes\n");
    }
}