import java.util.Scanner;

public class StringComparator {
    public static void log(Object obj) {
        System.out.println(obj.toString());
    }
    public static boolean isCheck(int a, int b, String type) {
        if(type.equals("=")) {
            return a==b;
        }
        if(type.equals("<")) {
            return a<b;
        }
        if(type.equals(">")) {
            return a>b;
        }
        return false;
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int s = sc.nextInt();
        int t = sc.nextInt();
        String c = sc.next();
        if(isCheck(s,t,c)) {
            log("YES");
        } else {
            log("NO");
        }
    }
}