C11111333133313232233133313331333133313221333133313231323233313221   >>    C1111133313331323223313331333133313331322133313331323132323331322   <<    C11111333133313232233133313331333133313221333133313231323233313223   >>      C11111333133313232233133313331333133313221333133313231323233313222   >>