B33132212112331323223313211232333132313331322331333133313113121   >>    B3313221211233132322331321123233313231333132233133313331311312   <<    B33132212112331323223313211232333132313331322331333133313113123   >>      B33132212112331323223313211232333132313331322331333133313113122   >>