Task: Program Execution
Input (English): 6, ['3375', 's', 'U', '6845', '6127', 'J', 'I', 'S', '8885', 'U', '1525', 'S', 'f', '7475', '153', '2961', '3993', 'P']
Output (English): I, S, 8885, U, 1525, S, f, 7475, 153, 2961, 3993, P