#include<bits/stdc++.h>
#include <math.h>
#include <iostream>
#include <algorithm>
using namespace std;

void lessthan(int a,int b){
    if(a < b){
        cout << "YES";
    }
    else cout << "NO";
}

void greaterthan(int a,int b){
    if(a > b){
        cout << "YES";
    }
    else cout << "NO";
}

void equalto(int a,int b){
    if(a == b){
        cout << "YES";
    }
    else cout << "NO";
}

int main()
{
    int a,b;
    char s;
    cin >> a >> b;
    cin >> s;
    if(s == '<'){
        lessthan(a,b);
    }
    else if(s == '>'){
        greaterthan(a,b);
    }
    else {
        equalto(a,b);
    }
    return 0;
}