#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
    int a, b;
    char c;
    cin >> a >> b >> c;
    if(c == '>')
        cout << (a > b ? "YES" : "NO") << "\n";
    else if(c == '<')
        cout << (a < b ? "YES" : "NO") << "\n";
    else
        cout << (a == b ? "YES" : "NO") << "\n"; 

    return 0;
}