var
 a:integer;
begin

writeln ('Ââåäèòå ÷åòûðåõçíà÷íîå ÷èñëî');
readln (a);
writeln ('ïðîèçâåäåíèå âòîðîé è ÷åòâåðòîé öèôð ðàâíî ',((a div 100) mod 10)*(a mod 10));
end.