Task: Program Execution
Input (English): 5021, 9499, 5823, 5223, D, 4137, 3547, b, 7017, G, r, B, 6841, y, 5431, W, 9029, y
Output (English): 5021, 9499, 5823, 5223, 4137, 3547, 7017, 6841, 5431, 9029