#include <iostream>
using namespace std;
int main() {
string wyraz;
cin >> wyraz;
cout << wyraz[0] << endl;
cout << wyraz[wyraz.size()-1] << endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CgkKICAgIHN0cmluZyB3eXJhejsKICAgIGNpbiA+PiB3eXJhejsKICAKICAgIGNvdXQgPDwgd3lyYXpbMF0gPDwgZW5kbDsKICAgIGNvdXQgPDwgd3lyYXpbd3lyYXouc2l6ZSgpLTFdIDw8IGVuZGw7IAoJcmV0dXJuIDA7Cn0=