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Counting password possibilities. Jump to level 1 Each character in a password is either a digit [0-9] or lowercase letter [az]. How many valid passwords

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Counting password possibilities. Jump to level 1 Each character in a password is either a digit [0-9] or lowercase letter [az]. How many valid passwords are there with the given restriction(s)? Length is 10 or 16, and must start with a digit. IIEXZ 26 1k 36A21 Write ab as: aAb

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