print $_,$/ for @files;

__DATA__
abcd1_abc_123456.abc1a_A.201307282200-2300-1.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-2.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-3.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-4.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-1.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-2.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-3.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-4.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-5.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-10.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-11.gz
abcd1_abc_123456.abc1a_A.201307282300-2400-12.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-10.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-11.gz
abcd1_abc_123456.abc1a_A.201307282200-2300-12.gz