Task: Program Execution
Input (English): Y, J, 7035, 6557, 7139, c, t, T, 4821, i, 7085, 2145, p, t, 3217, 6847, f, 1639, n, 6279, D, 4139, 4221
Output (English): 3, 4, 5, 9, 11, 12, 15, 16, 18, 20, 22, 23