[68,168,268,368,468,568,668,680,768,868,968,1068, 1168,1268,1368,1468,1568,1668,1680,1768,1868,1968, 2068,2168,2268,2368,2468,2568,2668,2680,2768,2868, 2968,3068,3168,3268,3368,3468,3568]