Task: Program Execution
Input (English): 1, 7, ['149', '9767', '9241', '2519', 'J', '1985', 'x', 'A', 'H', '1961', '6961', 'T', '2519', '7839', 'K', '481', 'I', 'U', 'i', 'U', 'a', '883', '2445', 'C', 'w']
Output (English): 149976792412519J1985x