#include #define REPP(i,n,m) for(int i=n;i<=m;i++) #define REPM(i,n,m) for(int i=n;i>=m;i--) using namespace std; void yn(bool f){if(f){cout<<"Yes\n";}else{cout<<"No\n";}} bool isnum(char c){return ('0'<=c&&c<='9');} int main(){ int p; int j; cin>>p; if(p%4==3){ cout<<"No"; } else{ for(int i=1;i<=pow(p,0.5);i++){ j=pow(p-i*i,0.5)+0.5; if(i*i+j*j==p){ cout<<"Yes"; break; } } } }