#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
typedef long long int ll;
typedef unsigned long long ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) {
    return (ull)rng() % B;
}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    char c;
    int s,t; cin >> s >> t >> c;
    if(c=='>')swap(s,t);
    if(c=='='){
        if(s==t)printf("YES\n");
        else printf("NO\n");
    }
    else{
        if(s<t)printf("YES\n");
        else printf("NO\n");
    }
}