Task: Program Execution
Input (English): 19, 20, ['5339', '2845', '6647', '3493', '6597', '5137', 'x', 'Z', '3567', '5175', 'H', '2177', 'g', '6751', 'C', '9305', 'Z', '689', 'x', 'l', '6621', 'x', '5243', '4441', 'W', '8401']
Output (English): 0