Task: Program Execution
Input (English): 2, 5, ['Z', '4235', '9651', 'U', '3783', '6721', 'p', 'I', '5253', 'E', '4317', '7461', 'u', '9033', 'X', '1869', '1599']
Output (English): 4235, p, 7461, 1599