Task: Program Execution
Input (English): 6659, W, 7647, 8007, 7649, F, 8899, t, D, 8381, 2225, c, x, 1927, 1861, V, 6571, 9085, V, 7151, 4527, E, d
Output (English): 6659, 7647, 8007, 7649, 8899, 8381, 2225, 1927, 1861, 6571, 9085, 7151, 4527