Task: Program Execution
Input (English): 1859, i, k, O, R, y, 9657, b, S, 3353, 7239, o, 4035, N, 9145, h, I, C, 8623, n
Output (English): 2, 3, 4, 5, 6, 8, 9, 12, 14, 16, 17, 18, 20