B331322121123313232233132112323331323133313223313331333132313232213223311   >>    B33132212112331323223313211232333132313331322331333133313231323221322331   <<    B331322121123313232233132112323331323133313223313331333132313232213223313   >>      B331322121123313232233132112323331323133313223313331333132313232213223312   >>