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March 31, 2015

March 31, 2015

Posted by **John** on Sunday, June 30, 2013 at 6:42am.

- Discrete Math -
**Henry**, Monday, July 1, 2013 at 4:29pm8 different passwords were formed:

ABCD

BCD

CDAB

DABC.

DCBA

CBAD

BADC

ADCB

- Discrete Math -
**Henry**, Monday, July 1, 2013 at 4:33pmCORRECTION:BCD should be BCDA

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