#include using namespace std; typedef long long ll; typedef long double ld; using P = pair; constexpr ll mod = 1e9+7; #define ALL(x) (x).begin(),(x).end() #define REP(i,n) for(ll (i)=0;(i)<(n);(i)++) #define REPS(i,n) for(ll (i)=1;(i)<=(n);(i)++) #define RREP(i,n) for(ll (i)=(n-1);(i)>=0;(i)--) #define RREPS(i,n) for(ll (i)=(n);(i)>0;(i)--) #define pb push_back #define eb emplace_back #define mp make_pair #define F first #define S second #define UNIQUE(v) v.erase(unique(ALL(v)),v.end()); template inline void chmin(T& a, T b){ if (a > b){ a = b; } } template inline void chmax(T& a, T b){ if (a < b){ a = b; } } signed main(){ cin.tie(0); ios::sync_with_stdio(false); cout<> n >> z; if(n >= 3){ cout << "No" << "\n"; }else if(n == 1){ if(z == 1){ cout << "No" << "\n"; }else{ cout << "Yes" << "\n"; } }else{ bool ok = 0; REPS(i,1000){ REPS(l,1000){ if(i*i+l*l == z*z)ok = 1; } } cout << (ok ? "Yes" : "No") << "\n"; } }