import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = sc.nextInt();
        int x = sc.nextInt();
        if( x >= (n-m)+3 ) {
            System.out.println("YES");
        } else {
            System.out.println("NO");
        }
    }
}