Task: Program Execution
Input (English): c, 5563, k, E, 8747, 6813, 5447, F, 4225, g, 6707, c, 7115, 3965, t, 2243, k, j, 9831, j, j, 9497, o, q
Output (English): 2, 5, 6, 7, 9, 11, 13, 14, 16, 19, 22