B33132212112331323223313211232333132313331322331333133313333321   >>    B3313221211233132322331321123233313231333132233133313331333332   <<    B33132212112331323223313211232333132313331322331333133313333323   >>      B33132212112331323223313211232333132313331322331333133313333322   >>