Task: Program Execution
Input (English): 16, 21, ['C', 'O', '2109', 'w', '5603', '1907', '4137', 'i', '6295', '7643', 'j', 'I', 'n', 'q', '7103', '6811', '8973', 'a', '7009', 'Z', 'q', 'c', '4359', '5079', '3331', 'T', 'n']
Output (English): q, Z, 7009, a, 8973, 6811