#include <limits> #include <iostream> #include <algorithm> #include <vector> #include <iomanip> #include <map> #include <set> #include <queue> #include <stack> #include <numeric> static const int MOD = 1000000007; using ll = long long; using u32 = unsigned; using namespace std; template<class T> constexpr T INF = ::numeric_limits<T>::max() / 32 * 15 + 208; int main() { int y, m, d; cin >> y >> m >> d; bool ans = false; if(1990 <= y && y <= 2018) ans = true; else if(y == 1989){ if(!(m == 1 && d <= 7)) ans = true; }else if(y == 2019){ if(m <= 4) ans = true; } puts(ans ? "Yes" : "No"); return 0; }