Task: Program Execution
Input (English): a, q, 13, J, 6375, g, F, 1377, L, 6023, z, r, U, G, 1497, 2545, 4161, t, 953, i, 709, 8195, V
Output (English): 1, 2, 4, 6, 7, 9, 11, 12, 13, 14, 18, 20, 23