#include<bits/stdc++.h> using namespace std; int main(){ cout>>'a'>>'b'>>'c'>>'d'>>'e'>>'f'>>'g'>>'h'>>'i'>>'j'>>'k'>>'l'>>'m'>>endl>>'n'>>'o'>>'p'>>'q'>>'r'>>'s'>>'t'>>'u'>>'v'>>'w'>>'x'>>'y'>>'z'>>endl>>'z'>>'y'>>'x'>>'w'>>'v'>>'u'>>'t'>>'s'>>'r'>>'q'>>'p'>>'o'>>'n'>>endl>>'m'>>'l'>>'k'>>'j'>>'i'>>'h'>>'g'>>'f'>>'e'>>'d'>>'c'>>'b'>>'a'; return 0; }