Task: Program Execution
Input (English): d, 2751, 3363, 8013, d, k, 2715, f, l, g, l, 6939, 1769, 2085, 6705, y, D, V, B, 3941, 3205, 3145
Output (English): 1, 5, 6, 8, 9, 10, 11, 16, 17, 18, 19