// verification-helper: PROBLEM https://yukicoder.me/problems/3354 #include using namespace std; #define call_from_test struct BoolPrinter{ const string a,b; BoolPrinter(string a_,string b_):a(a_),b(b_){} string operator[](int k){return k?a:b;} }; BoolPrinter yesno("yes","no"); BoolPrinter YesNo("Yes","No"); BoolPrinter YESNO("YES","NO"); #undef call_from_test signed main(){ cin.tie(0); ios::sync_with_stdio(0); int a,b; cin>>a>>b; cout<