Task: Program Execution
Input (English): F, 5491, 6093, c, 7845, 5981, 5193, 9649, n, 2889, c, 4207, K, 6861, 6163, n, 3125, 8191, p, z, 5299, 8949, J, 6603
Output (English): 1, 4, 9, 11, 13, 16, 19, 20, 23