Task: Program Execution
Input (English): d, d, u, 5001, U, G, 819, 1731, P, 7917, 4079, d, 6927, 1127, 6139, 7529, B, U, t, 1879, 3901, m
Output (English): 1, 2, 3, 5, 6, 9, 12, 17, 18, 19, 22