C1111133313331323223313331333133313331323131211113313113313233313231321121   >>    C111113331333132322331333133313331333132313121111331311331323331323132112   <<    C1111133313331323223313331333133313331323131211113313113313233313231321123   >>      C1111133313331323223313331333133313331323131211113313113313233313231321122   >>