Task: Program Execution
Input (English): 4919, b, 1037, X, d, R, 4313, 6309, 647, 5467, 7873, m, 1491, 4423, H, 9797, 6087, P, 7493, L, 2715, k, 1031
Output (English): 2, 4, 5, 6, 12, 15, 18, 20, 22