#include using namespace std; #include using namespace std; #define fs first #define sc second #define pb push_back #define mp make_pair #define eb emplace_back #define ALL(A) A.begin(),A.end() #define RALL(A) A.rbegin(),A.rend() typedef long long LL; typedef pair P; template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } template T gcd(T a,T b){return b?gcd(b,a%b):a;} const LL mod=1000000007; const LL LINF=1LL<<60; const int INF=1<<30; int dx[]={1,0,-1,0,1,-1,1,-1}; int dy[]={0,1,0,-1,1,-1,-1,1}; int main(){ int n,z;cin >> n >> z; if(3 <= n){ puts("No"); } else if(n == 2){ for (int x = 1; x < z; x++) { for (int y = 1; y < z; y++) { if(x * x + y * y == z * z){ puts("Yes"); return 0; } } } puts("No"); } else{ if(z == 1) puts("No"); else puts("Yes"); } return 0; }