B33132212112331323223313211232333132313331322331333133313231313221   >>    B3313221211233132322331321123233313231333132233133313331323131322   <<    B33132212112331323223313211232333132313331322331333133313231313223   >>      B33132212112331323223313211232333132313331322331333133313231313222   >>