B331322121123313232233132112323331323133313223313331333133313233313122332311   >>    B33132212112331323223313211232333132313331322331333133313331323331312233231   <<    B331322121123313232233132112323331323133313223313331333133313233313122332313   >>      B331322121123313232233132112323331323133313223313331333133313233313122332312   >>