Task: Program Execution
Input (English): 4579, f, Q, Y, X, 4053, 6121, 7199, T, 2167, i, i, 181, 3351, 1843, l, 3625, M, 2371, 5043
Output (English): 4579, 4053, 6121, 7199, 2167, 181, 3351, 1843, 3625, 2371, 5043