C11111333133313232233133313331333133313331311211331333133313331333133323223221   >>    C1111133313331323223313331333133313331333131121133133313331333133313332322322   <<    C11111333133313232233133313331333133313331311211331333133313331333133323223223   >>      C11111333133313232233133313331333133313331311211331333133313331333133323223222   >>