Task: Program Execution
Input (English): X, Z, l, k, d, e, h, 8961, k, 8745, U, 927, k, 2743, J, x, 8703, F, 8103, m
Output (English): 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 15, 16, 18, 20