#include <bits/stdc++.h>
using namespace std;
#define REP(i,n) for (int i = 0; i < (n); ++i)
#define DREP(i,s,n) for(int i = (s); i < (n); i++)
template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b;return true;}return false;}
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b;return true;}return false;}
using ll = long long;
using P = pair<int,int>;
using Pl = pair<long long,long long>;
using veci = vector<int>;
using vecl = vector<long long>;
using vecveci = vector<vector<int>>;
using vecvecl = vector<vector<long long>>;
const int MOD = 1000000007;
const double pi = acos(-1);
ll gcd(ll a, ll b) {if(b == 0) return a; else return gcd(b,a%b);}
ll lcm(ll a, ll b) {return a*b/gcd(a,b);}

int main() {
    int S,T; cin >> S >> T;
    char c; cin >> c;
    if(c == '>') if(S > T) cout << "YES" << endl; else cout << "NO" << endl;
    else if(c == '=') if(S == T) cout << "YES" << endl; else cout << "NO" << endl;
    else if(S < T) cout << "YES" << endl; else cout << "NO" << endl;
    return 0;
}