#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    int s,t;
    cin>>s>>t;
    char c;
    cin>>c;
    if(c=='='){
        if(s==t) cout<<"YES";
        else cout<<"NO";
        
    }
    if(c=='>'){
        if(s>t) cout<<"YES";
        else cout<<"NO";
        
    }
    if(c=='<'){
        if(s<t) cout<<"YES";
        else cout<<"NO";
        
    }
    return 0;
}