B33132212112331323223313211232333132313331322331333133313231311312121   >>    B3313221211233132322331321123233313231333132233133313331323131131212   <<    B33132212112331323223313211232333132313331322331333133313231311312123   >>      B33132212112331323223313211232333132313331322331333133313231311312122   >>