Task: Program Execution
Input (English): L, 4613, 6729, a, a, Z, 3597, 5563, b, p, z, 2427, h, 4171, Y, E, B, 7935, 6671
Output (English): 1, 4, 5, 6, 9, 10, 11, 13, 15, 16, 17