Task: Program Execution
Input (English): B, 3255, I, C, 4999, 1419, 3555, f, 729, E, 9325, o, 355, 1995, g, b, K, w, 9211, P, 8423, 4019, M
Output (English): 2, 5, 6, 7, 9, 11, 13, 14, 19, 21, 22