#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //#include using namespace std; //using namespace atcoder; #define repr(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define rep(i, n) repr(i, 0, n) #define INF 2e9 #define MOD 1000000007 //#define MOD 998244353 #define LINF (long long)4e18 #define jck 3.141592 #define PI acos(-1.0) const double EPS = 1e-10; using ll = long long; using Pi = pair; using Pl = pair; //using mint = modint998244353; int dh[] = {-1,0,1,0}; int dw[] = {0,1,0,-1}; int main(){ ll n; cin >> n; for(ll i = 1; i*i*i <= n; i++){ if(i*i*i == n){ cout << "Yes" << endl; return 0; } } cout << "No" << endl; }