C1111133313331323223313331333133313331333131211113313331311211123321   >>    C111113331333132322331333133313331333133313121111331333131121112332   <<    C1111133313331323223313331333133313331333131211113313331311211123323   >>      C1111133313331323223313331333133313331333131211113313331311211123322   >>