B3313221211233132322331321123233313231333132233133313331312323132322331121   >>    B331322121123313232233132112323331323133313223313331333131232313232233112   <<    B3313221211233132322331321123233313231333132233133313331312323132322331123   >>      B3313221211233132322331321123233313231333132233133313331312323132322331122   >>