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#Simple program to check validity of 16 digit credit card numbers
Invalid Input: x.
16 digit cards only for now (41245678912345).
Card Number: 4124567891234560
Non-existent; I don't have TV
Non-existent; my TV doesn't have/need a remote
Under my control; I watch alone
Under the control of whoever shouts loudest
Under the control of whoever gets it first
One of many, and the TV has a mind of its own
Results (93 votes),