#include <iostream>
using namespace std;
int main(){
    int a,b;char c;cin>>a>>b>>c;
    if(c == '='){
        if(a==b){
            cout << "YES" << endl;
        }else{
            cout << "NO" << endl;
        }
    }else{
        if(c == '<')swap(a,b);
        if(a>b){
            cout << "YES" << endl;
        }else{
            cout << "NO" << endl;
        }
    }
}