B33132212112331323223313211232333132313331322331333133313232233131323121   >>    B3313221211233132322331321123233313231333132233133313331323223313132312   <<    B33132212112331323223313211232333132313331322331333133313232233131323123   >>      B33132212112331323223313211232333132313331322331333133313232233131323122   >>