Task: Program Execution
Input (English): 1891, l, 4835, c, 2583, 3107, X, 7631, 3259, Q, t, v, 4157, Q, V, Q, c, A, 2229, G, 1967, h
Output (English): 1, 3, 5, 6, 8, 9, 13, 19, 21