Given two input arrays like this: [5,3,1] ['a','b','c']

Output a string that contains each letter the specified number of times, e.g.:

    'aaaaabbbc'

If given an invalid input (for example, a negative number), output the string 'ERROR'.

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Last Solution submitted on Mar 16, 2026

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Pauli Huusari Armando Longobardi Vasilis Bellos Lorenzo

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