B33132212112331323223313211232333132313331322331333133313331312312112121   >>    B3313221211233132322331321123233313231333132233133313331333131231211212   <<    B33132212112331323223313211232333132313331322331333133313331312312112123   >>      B33132212112331323223313211232333132313331322331333133313331312312112122   >>