Task: Program Execution
Input (English): 5, 21, ['a', '601', 'D', '7757', 'v', '7271', '827', 'C', 'z', 'V', 'Q', 'k', '8657', 'r', '4945', '9477', 'c', 'X', 'P', 'Q', '7795']
Output (English): 5977QPXc77495494r7568kQVzC7281727v