Task: Program Execution
Input (English): J, 4697, j, 8325, O, 3473, g, R, 4135, 9463, b, 7399, b, 4879, r, 4603, F, 9055, G, 1937, Y, R, 961
Output (English): 1, 3, 5, 7, 8, 11, 13, 15, 17, 19, 21, 22