Task: Program Execution
Input (English): 2709, y, 4331, R, 5573, 2419, M, q, 6123, n, G, U, 1365, 7867, Y, 5745, j, b, 6417, 2081, H, 6763
Output (English): 1, 3, 5, 6, 9, 13, 14, 16, 19, 20, 22