S:\PerlMonks>perl scope0.pl
Answer = [kbNtA]

S:\PerlMonks>perl scope0.pl
Answer = [kbNtA]

S:\PerlMonks>perl scope0.pl
Answer = [kbNtA]

S:\PerlMonks>perl scope0.pl
Answer = [kbNtA]

S:\PerlMonks>perl scope0.pl
Answer = [WiaNq]