#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<ll,ll> P;
typedef vector<ll> VI;
typedef vector<VI> VVI;
#define REP(i,n) for(int i=0;i<(n);i++)
#define ALL(v) v.begin(),v.end()
constexpr ll MOD=1000000007;
constexpr ll INF=1e18;

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