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Question: Cryptarithm Solver Problem Statement: A cryptarithm is a mathematical puzzle where the goal is to find the correspondence between letters and digits such that the given arithmetic equation consisting of letters holds true. Given a cryptarithm as an array of strings crypt, count the number of its valid solutions. The solution is valid if each letter represents a different digit, and the leading digit of any multi-digit number is not zero. crypt has the following structure: [word1, word2, word3], ...