my @hash_refs = keys %{$VAR1};

##</code><code>##

#!/usr/bin/perl -w
use strict;

my $VAR1 = { '365' => { foo=>1, bar=>2 }, '302' => {} };
my @hash_refs = keys %{$VAR1};

print "My hash refs are: ".join (', ',@hash_refs)."\n";
print "The value of my hash refs are: ".join(', ', values %{$VAR1})."\n\n";

my %tmp = %$VAR1;
print "'bar' in '365' is: ".$tmp{'365'}->{bar}."\n";