#include <iostream> using namespace std; int main() { int t,n,sum = 0; cin >> t; while (t --) { cin >> n; sum = 0; long long flag = 1; while (flag) { if (flag & n) { sum ++; if (sum > 2) break; } } flag = flag << 1; } if (sum > 2 || n == 1) cout << "no" << endl; else cout << "yes" << endl; }