Task: Program Execution
Input (English): 3, 5, ['z', '4061', 'Y', 'c', 'W', 'H', 'A', 'O', '6759', 'J', '3481', 't', 'a', 'M', '1941', '2399', 'w', 'R', '3343', '5011']
Output (English): WcY