B33132212112331323223313211232333132313331322331333133313331322211311   >>    B3313221211233132322331321123233313231333132233133313331333132221131   <<    B33132212112331323223313211232333132313331322331333133313331322211313   >>      B33132212112331323223313211232333132313331322331333133313331322211312   >>