Task: Program Execution
Input (English): V, E, D, 9831, Z, 4487, 4139, e, 1635, W, 7745, d, r, 2179, 2741, X, G, H, 3323, 3069, 5979
Output (English): 4, 6, 7, 9, 11, 14, 15, 19, 20, 21