use warnings;
use strict;

my @alphabet = (
    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", 
    "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"
);
my $nummer = 0;
my $slovo;

print "Tell me your pass (only small alphabet only ONE a-z)";
my $hladane = <STDIN>;
chomp $hladane;

print "$alphabet[$nummer] \n";
$slovo = $alphabet[$nummer];

while ($slovo ne $hladane) {
    $nummer = $nummer + 1;
    print "$alphabet[$nummer]\n";
    $slovo = $alphabet[$nummer];
}
print "GOTCHA $hladane !!! \n";