B33132212112331323223313211232333132313331322331333133313331311221123231221   >>    B3313221211233132322331321123233313231333132233133313331333131122112323122   <<    B33132212112331323223313211232333132313331322331333133313331311221123231223   >>      B33132212112331323223313211232333132313331322331333133313331311221123231222   >>