#include using namespace std; using ll = long long; #define rep(i, n) for (int i = 0; i < (int)(n); i++) void solve() { ll a, b; cin >> a >> b; bool ok = true; while (a > 0 && b > 0) { ll x = a % 10; ll y = b % 10; ok &= x >= y; a /= 10; b /= 10; } cout << (ok ? "Yes" : "No") << '\n'; } int main() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); int T = 1; for (int t = 0; t < T; t++) { solve(); } return 0; }