Task: Program Execution
Input (English): 14, 21, ['Y', '3875', 'u', 'u', 'j', '3407', 'f', 'i', '4027', 'g', 'R', '3787', 't', 'p', '3703', 'B', '2091', 'w', 'L', 'v', 'f', '4441', '8399', '6885', 'u']
Output (English): f, v, L, w, 2091, B, 3703, p