#include using namespace std; int main(){ int n, z; cin >> n >> z; if (n == 1){ if (z == 1){ cout << "No" << endl; } else { cout << "Yes" << endl; } } else { int c = 1; for (int i = 0; i < n; i++){ c *= z; } set st; int b = 1; while (1){ long long p = 1; bool big = false; for (int i = 0; i < n; i++){ p *= b; if (p > c){ big = true; break; } } if (big){ break; } else { st.insert(p); b++; } } bool ok = false; for (int a : st){ if (st.count(c - a)){ ok = true; } } if (ok){ cout << "Yes" << endl; } else { cout << "No" << endl; } } }