#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;

my %clone_hash;
while (<DATA>)
{
    chomp;
	my @fields = split /\t/; 		
	my ($gene_symbol, $esc_qc) = ($fields[0], $fields[1]);
	$clone_hash{$gene_symbol} = $esc_qc;
	my $grade = ($esc_qc =~ /^pass[1-3]$/) ? 'good' : 'bad';
	$clone_hash{$key}{$grade}++;
}
print Dumper(\%clone_hash);

_DATA_
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	fail
4933402D24Rik	pass1