#include"bits/stdc++.h"
#include<boost/multi_array.hpp>
#include<boost/optional.hpp>
#include<boost/range/irange.hpp>
#include<boost/range/algorithm.hpp>
#include<boost/range/adaptors.hpp>
using namespace std;

namespace adaptor = boost::adaptors;

void Main(){
  int a,b;
  string c;
  cin >> a >> b >> c;
  if(c==">"){
    if(a>b){
      cout << "YES";
    }else{
      cout << "NO";
    }
  }else if(c=="<"){
    if(a<b){
      cout << "YES";
    }else{
      cout << "NO";
    }
  }else{
    if(a==b){
      cout << "YES";
    }else{
      cout << "NO";
    }
  }
}

int main(){
	std::cin.tie(nullptr);
	std::ios_base::sync_with_stdio(false);
	std::cout << std::fixed << std::setprecision(15);
	Main();
}