Task: Program Execution
Input (English): 9417, 6381, 1571, 3209, 2075, t, 2081, X, 7765, l, U, 349, 2711, Y, 7047, x, Z, 365, a, h, 8555
Output (English): 6, 8, 10, 11, 14, 16, 17, 19, 20