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A: abbaba B: babbaaaa A: abbaba B: --babbaaaa
#!/usr/bin/perl ... return $random_string; }
1:(1)(0,4)(bbab,bbbb) 2:(1)(0,4)(aaaa,aaba) ... 8:(1)(3,1)(baaa,bbba) 9:(1)(0,4)(aaab,baab) 10:(0)(0,4)(aaaa,aaaa)