Task: Program Execution
Input (English): 15, 18, ['2015', '555', '5871', 'f', 'Z', 'I', '2933', 'I', 'O', 'q', 'f', 'C', '9331', '1729', 'v', 'P', 'n', 'Z', '4235', '4913', 'z', '3623']
Output (English): Z, n, P, v