Task: Program Execution
Input (English): y, 4579, C, 8683, 5169, 3379, 2369, E, e, w, 4747, j, u, 6217, 2635, 2397, h, 7589, 5399, z
Output (English): 2, 4, 5, 6, 7, 11, 14, 15, 16, 18, 19