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Unit 1unit test CABDC CDB BDC
unit 2 Unit test DCCDC CDB ADB
Unit3 unit test DBACB
CDB BCD
Unit 4 unit test ACBCD ADD ADC
unit5 unit test BCDAB DAC CAB
unit 6 unit test CDABC BCA CAC
Unit7 unit test :CDABC ACD ACB Unit 8 unit test :BDBCA DCD DCB Unit 9 unit test :BADAC DBA DCB Unit 10 unit test :BADCA CBA CCB
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