Task: Program Execution
Input (English): 1821, B, L, 9889, 6477, 3367, 6705, Z, K, 8625, 7575, 2849, 6155, P, 2411, t, 4233
Output (English): 1821, 9889, 6477, 3367, 6705, 8625, 7575, 2849, 6155, 2411, 4233