B3313221211233132322331321123233313231333132233133313331333131122212311   >>    B331322121123313232233132112323331323133313223313331333133313112221231   <<    B3313221211233132322331321123233313231333132233133313331333131122212313   >>      B3313221211233132322331321123233313231333132233133313331333131122212312   >>