use strict;
use warnings;
use utf8;
binmode STDOUT, ':encoding(cp932)'; binmode STDERR, ':encoding(cp932)';
my $str = "abde+gdcba";
if ($str =~ /de+f/){
}else{
}
if ($str =~ /de+g/){
}else{
}
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