#define _USE_MATH_DEFINES
#include  <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
#include<math.h>
#include<iomanip>
#include<stdio.h>
#include <stdlib.h>
#include<stdio.h>
#include <queue>
#include<map>
#include <sstream>
#include<set>
#include<stack>
#include<time.h>
#include <sys/types.h>
#include <tuple>
#include <numeric>


typedef long long int ll;
//#include<bits/stdc++.h>


using namespace std;







int main()
{

    int Q;
    Q = 1;
    //cin >> Q;

    while (Q--) {
        int a, b;
        char c;
        bool f = 0;
        cin >> a >> b>>c;
        if (c == '>') {
            if (a > b)f = 1;
        }
        if (c == '<') {
            if (a < b)f = 1;
        }
        if (c == '=') {
            if (a == b)f = 1;
        }
        if (f)cout << "YES" << endl;
        else cout << "NO" << endl;
        
    }
    return 0;
}