import java.util.Scanner;
   public class Main
{
   public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int x = a+b+c;
		if (x % 2 == 0){
			if (a+b>=c){
		       System.out.println("Yes");
			}else{ 
			   System.out.println("No");
			}
		}else {
		      System.out.println("Bad");
		}
		  
		  
	}
}

/**************************************************************
	Problem: 1677
	User: admin
	Language: Java
	Result: Accepted
	Time:1088 ms
	Memory:39836 kb
****************************************************************/