Task: Program Execution
Input (English): 6, ['9573', 'j', 'k', '8587', 'K', 'M', 'D', 'I', 'J', '4475', 'Z', 'D', '1697', 'i', '5799', '9693', 's', '8435', 'Y']
Output (English): 9573, D, 1697, Y