Task: Program Execution
Input (English): U, g, F, K, 3283, c, Z, 2795, 9977, 6069, Q, z, L, 7643, 4449, f, 2307, p, 8851, 3059, W
Output (English): 1, 2, 3, 4, 6, 7, 11, 12, 13, 16, 18, 21