C1111133313331323223313331333133313113313223313331311211331312111   >>    C111113331333132322331333133313331311331322331333131121133131211   <<    C1111133313331323223313331333133313113313223313331311211331312113   >>      C1111133313331323223313331333133313113313223313331311211331312112   >>