Task: Program Execution
Input (English): 2445, K, 9351, P, 7549, I, 9703, 8821, 6331, 6211, 5429, 5557, 3595, u, K, 4627, 4045
Output (English): K, P, I, u, K, 2445, 9351, 7549, 9703, 8821, 6331, 6211, 5429, 5557, 3595, 4627, 4045