#include <iostream>
usingnamespace std;
char checkinput(char input)
{
if (input=='x')return'x';
if (input=='X')return'x';
if (input=='y')return'y';
if (input=='Y')return'y';
elsereturn'd';// d means switch to default
}
void testswitch()
{
char choice;
cin>>choice;
switch(checkinput(choice)){
case'x':cout<<"Case x or X"<<endl;break;
case'y':cout<<"Case y or Y"<<endl;break;
default: cout<<" None"<<endl;break;
}
}
int main()
{
testswitch();
return 0;
}