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$/=$_;$(=shift;$a=shift;i(shift);socket S,2,1,6;bind S,a($a);listen
S,5;while(@ARGV&&($_="$( $a f".shift)||accept(C,S)&&($_=<C>)&&close
...
keys%k}sub t{socket X,2,1,6;(connect X,a($w=shift))?print
X"$( $_[0] $_[1]/$_[2]"and close X:$k{$w}=$7}sub
e{open F,">$_[1]";print F $_[2];close F}