Task: Program Execution
Input (English): 4, 8, ['5475', '3145', 'I', 'd', 'y', 'Z', 'e', '1827', 'e', '5689', '5195', 'o', 'i', '2353', 'k', 'r', 'z', 'w', 'D', 'u', 'o', 'p', 'O', '7937', '7057']
Output (English): d, o, u