#include <iostream>

using namespace std;

void solve() {
    int s, t;
    char c;
    cin >> s >> t >> c;

    bool ans;
    switch (c) {
        case '<': {
            ans = (s < t);
            break;
        }
        case '>': {
            ans = (s > t);
            break;
        }
        case '=': {
            ans = (s == t);
            break;
        }
    }

    cout << (ans ? "YES" : "NO") << "\n";
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    solve();

    return 0;
}