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Broken Calculator (212)
Instruction:
A broken calculator has been used to calculate an expression. However, many segments of the calculator’s display are broken, meaning that they are stuck in the "off" position (and do not display even if they are supposed to be "on" in the digit). The broken segments are consistent between numbers (but can be different between digits of the same number). The length of each number (in digits) is provided; the numbers do not have any leading zeroes. Determine the original expression.