def test_equal_4(self):
     self.assertEqual(
         diff([
             '62-646', '255--623', '5-942', '683-683', '30-30', '9-9',
             '10-10', '22-267', '53-53', '262-262', '27-27', '541-541',
             '97-168', '12-12'
         ]), '5-942')
 def test_equal_5(self):
     self.assertEqual(
         diff([
             '57--275', '689-756', '9--9', '168-481', '872-872', '571-604',
             '652-1149', '113-119', '5-10', '44--53', '755-1063', '8--455',
             '908-908', '8-323', '4-4', '10-28', '12--317', '1--30'
         ]), '652-1149')
 def test_equal_6(self):
     self.assertEqual(
         diff([
             '799-627', '49-20', '354-1168', '8-8', '47-39', '2-12',
             '17-17', '52--27', '568-470', '7--378', '625-625', '4-4',
             '34-89'
         ]), '354-1168')
 def test_equal_9(self):
     self.assertEqual(
         diff([
             '9-9', '50--200', '4--169', '8-8', '155-1117', '504-504',
             '2-12', '347--345', '6-6', '88-88', '4--365', '2-2',
             '960-1213', '71--697', '66-66'
         ]), '155-1117')
 def test_equal_5(self):
     self.assertEqual(
         diff(
             [
                 "57--275",
                 "689-756",
                 "9--9",
                 "168-481",
                 "872-872",
                 "571-604",
                 "652-1149",
                 "113-119",
                 "5-10",
                 "44--53",
                 "755-1063",
                 "8--455",
                 "908-908",
                 "8-323",
                 "4-4",
                 "10-28",
                 "12--317",
                 "1--30",
             ]
         ),
         "652-1149",
     )
 def test_equal_7(self):
     self.assertEqual(
         diff(
             [
                 "38-10",
                 "61-61",
                 "10-10",
                 "646-643",
                 "2-2",
                 "148-148",
                 "28-28",
                 "71-71",
                 "856-876",
                 "8--764",
                 "9--105",
                 "20--54",
             ]
         ),
         "8--764",
     )
 def test_equal_8(self):
     self.assertEqual(
         diff(
             [
                 "63-63",
                 "79-84",
                 "694-694",
                 "82-784",
                 "2-2",
                 "7--907",
                 "964-970",
                 "856-612",
                 "56--3",
                 "8--210",
                 "6-662",
                 "98-254",
             ]
         ),
         "7--907",
     )
 def test_equal_6(self):
     self.assertEqual(
         diff(
             [
                 "799-627",
                 "49-20",
                 "354-1168",
                 "8-8",
                 "47-39",
                 "2-12",
                 "17-17",
                 "52--27",
                 "568-470",
                 "7--378",
                 "625-625",
                 "4-4",
                 "34-89",
             ]
         ),
         "354-1168",
     )
 def test_equal_4(self):
     self.assertEqual(
         diff(
             [
                 "62-646",
                 "255--623",
                 "5-942",
                 "683-683",
                 "30-30",
                 "9-9",
                 "10-10",
                 "22-267",
                 "53-53",
                 "262-262",
                 "27-27",
                 "541-541",
                 "97-168",
                 "12-12",
             ]
         ),
         "5-942",
     )
 def test_equal_9(self):
     self.assertEqual(
         diff(
             [
                 "9-9",
                 "50--200",
                 "4--169",
                 "8-8",
                 "155-1117",
                 "504-504",
                 "2-12",
                 "347--345",
                 "6-6",
                 "88-88",
                 "4--365",
                 "2-2",
                 "960-1213",
                 "71--697",
                 "66-66",
             ]
         ),
         "155-1117",
     )
 def test_equal_10(self):
     self.assertEqual(
         diff(['585-189', '88-88', '41-41', '2-275', '315-315']), '585-189')
 def test_equal_1(self):
     self.assertEqual(diff(['56-23', '1-100']), '1-100')
 def test_equal_8(self):
     self.assertEqual(
         diff([
             '63-63', '79-84', '694-694', '82-784', '2-2', '7--907',
             '964-970', '856-612', '56--3', '8--210', '6-662', '98-254'
         ]), '7--907')
 def test_equal_7(self):
     self.assertEqual(
         diff([
             '38-10', '61-61', '10-10', '646-643', '2-2', '148-148',
             '28-28', '71-71', '856-876', '8--764', '9--105', '20--54'
         ]), '8--764')
 def test_equal_10(self):
     self.assertEqual(diff(["585-189", "88-88", "41-41", "2-275", "315-315"]), "585-189")
 def test_false_1(self):
     self.assertFalse(diff(["11-11", "344-344"]))
 def test_equal_12(self):
     self.assertEqual(diff(["7-574", "34-34", "33-9", "716-716", "688-1062", "73--207"]), "7-574")
 def test_equal_3(self):
     self.assertEqual(
         diff(["36-43", "3-3", "66-66", "19-19", "539-539", "5--831", "721-770", "6--55", "943-945", "9-9"]),
         "5--831",
     )
 def test_false_1(self):
     self.assertFalse(diff(['11-11', '344-344']))
 def test_equal_2(self):
     self.assertEqual(diff(["1-3", "5-7", "2-3"]), "1-3")
 def test_equal_1(self):
     self.assertEqual(diff(["56-23", "1-100"]), "1-100")
 def test_equal_11(self):
     self.assertEqual(diff(['12--268', '10-10', '3-3', '722-722', '7-7']),
                      '12--268')
 def test_equal_12(self):
     self.assertEqual(
         diff(['7-574', '34-34', '33-9', '716-716', '688-1062', '73--207']),
         '7-574')
 def test_equal_11(self):
     self.assertEqual(diff(["12--268", "10-10", "3-3", "722-722", "7-7"]), "12--268")
 def test_equal_2(self):
     self.assertEqual(diff(['1-3', '5-7', '2-3']), '1-3')
 def test_equal_3(self):
     self.assertEqual(
         diff([
             '36-43', '3-3', '66-66', '19-19', '539-539', '5--831',
             '721-770', '6--55', '943-945', '9-9'
         ]), '5--831')