Task: Program Execution
Input (English): 5, ['J', 'P', '1729', 'y', 'x', 'k', '8357', '7141', '2947', 'j', '2573', '463', '4313', 'j', '9753', 'I', '8215', 'O', '113', '4361', 'K', '1111']
Output (English): J, k, 2573, I, K