#include <iostream>
int main()
{
char A[2], B[2];
std::cout << "Enter A: \n";
std::cin >> A;
std::cout << "OK. A is: " << A << " Enter B: \n";
std::cin >> B;
if (A[0] == B[3])
std::cout << "Welcome \n";
else
std::cout << "Get out. \n";
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgoKaW50IG1haW4oKQp7CgljaGFyIEFbMl0sIEJbMl07CgoJc3RkOjpjb3V0IDw8ICJFbnRlciBBOiBcbiI7CglzdGQ6OmNpbiA+PiBBOwoJc3RkOjpjb3V0IDw8ICJPSy4gQSBpczogIiA8PCBBIDw8ICIgRW50ZXIgQjogXG4iOwoJc3RkOjpjaW4gPj4gQjsKCglpZiAoQVswXSA9PSBCWzNdKQoJCXN0ZDo6Y291dCA8PCAiV2VsY29tZSBcbiI7CgllbHNlCgkJc3RkOjpjb3V0IDw8ICJHZXQgb3V0LiBcbiI7CgogICAgcmV0dXJuIDA7Cn0=