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| from functools import reduce | |
| checkio = lambda number: reduce(lambda x, y: x * y, | |
| filter(lambda digit: digit, | |
| map(int, str(number)))) | |
| assert checkio(1) == 1, 'The simplest one' | |
| assert checkio(10) == 1, 'With zero' | |
| assert checkio(234) == 24, '234' |
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