Task: Program Execution
Input (English): 599, 7957, m, 5469, d, q, Z, x, r, 2955, d, 3001, 5291, H, 1845, 2809, h, Q, c, B
Output (English): 3, 5, 6, 7, 8, 9, 11, 14, 17, 18, 19, 20