Task: Program Execution
Input (English): S, 3749, a, 7677, i, 5039, 525, M, 8017, Y, 6911, 3963, 7243, v, 665, I, 4909, o, C, O, i, V, 8321
Output (English): 1, 3, 5, 8, 10, 14, 16, 18, 19, 20, 21, 22