#include <iostream>

using namespace std;

int main(){
    int x,y,z;
    cin>>x>>y>>z;
    if((x+y+z)%3){
        cout<<"No"<<endl;
        return 0;
    }
    int t=(x+y+z)/3;
    int i,j,k;

    if(t-z>=0){
        j=t-z;
        k=j;
        i=t-x+3*k;
    }else{
        j=2*(t-z);
        k=t-1;
        i=t-x+3*k;
    }
    if(i>=0&&j>=0&&k>=0&&i-3*k==t-x&&-i+2*j==t-y){
        cout<<"Yes"<<endl;
    }else{
        cout<<"No"<<endl;
    }
    return 0;
}