Task: Program Execution
Input (English): 1, 4, ['c', '3647', 'r', 'Y', 'j', '3445', '2365', '8591', 'I', 't', 'k', 'T', '3865', '6855', '9869', 'e', 'W', '9043', 'O', 'k']
Output (English): c3647rY