Task: Program Execution
Input (English): 1703, 9367, x, 9101, K, 7395, 9421, 481, 3799, 1743, 6971, t, b, 1267, p, 4281, v, Q, 5295, 2909
Output (English): 1, 2, 4, 6, 7, 8, 9, 10, 11, 14, 16, 19, 20