B33132212112331323223313211232333132313331322331333133313331322133313221121   >>    B3313221211233132322331321123233313231333132233133313331333132213331322112   <<    B33132212112331323223313211232333132313331322331333133313331322133313221123   >>      B33132212112331323223313211232333132313331322331333133313331322133313221122   >>