#include<bits/stdc++.h>
using namespace std;
int main(){
	int x,y,z,h;
	cin>>x>>y>>z;
	h=x+y+z;
	if (h%2==0){
		if (x+y>=z){
			cout<<"Yes"<<endl;
		}
		else {
			cout<<"No"<<endl;
		}
	}
		else {
			cout<<"Bad"<<endl;
		}
	return 0;
}
/**************************************************************
	Problem: 1677
	User: xiaojingxuan
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/