bash-3.1$ perl -v
This is perl, v5.8.8 built for MSWin32-x86-multi-thread
Binary build 820 [274739] provided by ActiveState http://www.ActiveState.com(ry

bash-3.1$ time perl aozora.pl ../input/20.txt
real 0m7.738s
user 0m0.015s
sys 0m0.031s

bash-3.1$ time cscript aozora.js ../input/20.txt
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

real 0m7.637s
user 0m0.015s
sys 0m0.031s