Task: Program Execution
Input (English): i, t, 6279, 5443, l, 4961, 6359, 4215, s, 1869, 2835, 9937, 6633, 4425, 7029, M, 6163, Q
Output (English): 3, 4, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17