Task: Program Execution
Input (English): 1, 21, ['f', 'z', '9531', '7899', '9057', 'o', '387', '3191', '655', 'I', '4263', '9079', 'v', 'N', '8619', 'T', '9607', 'v', '4215', 'v', 'K', '6919', '8693', '1895']
Output (English): Kv5124v7069T9168Nv97093624I5561913783o750999871359zf