#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define llint long long #define inf 1e18 #define rep(x, s, t) for(llint (x) = (s); (x) < (t); (x)++) #define Rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++) #define chmin(x, y) (x) = min((x), (y)) #define chmax(x, y) (x) = max((x), (y)) using namespace std; typedef pair P; llint n, z; int main(void) { ios::sync_with_stdio(0); cin.tie(0); cin >> n >> z; if(n >= 3){ cout << "No" << endl; return 0; } if(n == 1){ if(z == 1) cout << "No" << endl; else cout << "Yes" << endl; return 0; } for(int i = 1; i <= 1000; i++){ for(int j = 1; j <= 1000; j++){ if(i*i + j*j == z*z){ cout << "Yes" << endl; return 0; } } } cout << "No" << endl; return 0; }