#include <bits/stdc++.h>
using namespace std;
int main(){
	int a,b,c;
	cin>>a>>b>>c;
	if((a+b+c)%2==0){
	if(a+b>=c){
		cout<<"Yes";
	}	
	else {
		cout<<"No";
	}
	}else{
		cout<<"Bad";
	}
}

/**************************************************************
	Problem: 1677
	User: toughuatao1
	Language: C++
	Result: Accepted
	Time:19 ms
	Memory:2072 kb
****************************************************************/