Task: Program Execution
Input (English): 7897, T, z, W, 7849, F, 6207, 4625, 4237, K, C, Z, D, 4121, 4949, 1829, 3375, t, 233, 9083, 7865
Output (English): 2, 3, 4, 6, 10, 11, 12, 13, 18