#include<bits/stdc++.h>
using namespace std;
int main() {
cout<<"C++15>C++11"<<endl
<<"C++11>C++9"<<endl
<<"C++9>C"<<endl
<<"C>Python3"<<endl
<<"Python3>Python2"<<endl
<<"Python2>Java"<<endl
<<"Java>JavaScript"<<endl
<<"JavaScript>Pascal"<<endl
<<"Pascal>PHP"<<endl
<<"PHP>C#"<<endl
<<"C#>Objective-C"<<endl;
cout<<"Hello IDE!"<<endl;
return 0;
}
I2luY2x1ZGU8Yml0cy9zdGRjKysuaD4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJY291dDw8IkMrKzE1PkMrKzExIjw8ZW5kbAoJCTw8IkMrKzExPkMrKzkiPDxlbmRsCgkJPDwiQysrOT5DIjw8ZW5kbAoJCTw8IkM+UHl0aG9uMyI8PGVuZGwKCQk8PCJQeXRob24zPlB5dGhvbjIiPDxlbmRsCgkJPDwiUHl0aG9uMj5KYXZhIjw8ZW5kbAoJCTw8IkphdmE+SmF2YVNjcmlwdCI8PGVuZGwKCQk8PCJKYXZhU2NyaXB0PlBhc2NhbCI8PGVuZGwKCQk8PCJQYXNjYWw+UEhQIjw8ZW5kbAoJCTw8IlBIUD5DIyI8PGVuZGwKCQk8PCJDIz5PYmplY3RpdmUtQyI8PGVuZGw7Cgljb3V0PDwiSGVsbG8gSURFISI8PGVuZGw7CglyZXR1cm4gMDsKfQ==