B33132212112331323223313211232333132313331322331333133313232212311   >>    B3313221211233132322331321123233313231333132233133313331323221231   <<    B33132212112331323223313211232333132313331322331333133313232212313   >>      B33132212112331323223313211232333132313331322331333133313232212312   >>