Task: Program Execution
Input (English): 15, 17, ['W', 'b', '2893', '6671', 'u', 'e', '5825', '2831', 'r', 'N', 'r', 'd', '9781', 'B', 'Z', '4121', 'p', '4895', 'a', 'B', '5299', 'T', '6777', '3991', '7169', '3117', 's', 'M']
Output (English): Z4121p