#!/usr/bin/perl
use strict;
use warnings;
my @a = ('in3g123456,dh3k123456,dhec110101','dhec110101,dhec123456','in3g123456,dh3k123456', 'c3kasdf', 'usdfusdufs3gsdf' );
foreach (@a) {
my @inputs = split /,/,$_; my $flag = 0;
foreach (@inputs){
$flag = 1 unless ((substr $_,2,2) =~ /(3g|3k)/); }
}
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