#define _USE_MATH_DEFINES #include using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() using ll = long long; const int INF = 0x3f3f3f3f; const ll LINF = 0x3f3f3f3f3f3f3f3fLL; const double EPS = 1e-8; const int MOD = 1000000007; // const int MOD = 998244353; const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; const int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1}; template inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; } template inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; } struct IOSetup { IOSetup() { cin.tie(nullptr); ios_base::sync_with_stdio(false); cout << fixed << setprecision(20); } } iosetup; int main() { int n, z; cin >> n >> z; if (n == 1) { cout << (z == 1 ? "No\n" : "Yes\n"); return 0; } int r = 1; REP(_, n) r *= z; vector xy; for (int x = 1; x * x <= r; ++x) { ll tmp = 1; REP(_, n) { tmp *= x; if (tmp > r) break; } if (tmp <= r) xy.emplace_back(tmp); } sort(ALL(xy)); for (int e : xy) { int rem = r - e; if (*lower_bound(ALL(xy), rem) == rem) { cout << "Yes\n"; return 0; } } cout << "No\n"; return 0; }