#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <utility>
#include <algorithm>
#include <cmath>
#include <climits>
#include <iomanip>
#include <queue>
#include <stack>
#include <ctype.h>

using namespace std;

typedef long long ll;

const int INF = (1<<30)-1;
const ll LINF = 1e18;

#define rep(i, n) for (int i = 0; i < n; i++)

template<class T> 
bool chmax(T &a, T b) {if (a < b) {a = b;return true;}else return false;}

template<class T> 
bool chmin(T &a, T b) {if (a > b) {a = b;return true;}else return false;}

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;
}

//小数点精度
//cout << fixed << std::setprecision(15) << y << endl;