Task: Program Execution
Input (English): c, 2913, 6975, v, N, V, a, 6293, b, 2257, E, I, 4363, u, P, 1621, 1853, q, 8371, 789, 5323, V, 2393
Output (English): 2, 3, 8, 10, 13, 16, 17, 19, 20, 21, 23