C11111211113313112113313331333133313331312111133133331333133313331322331121   >>    C1111121111331311211331333133313331333131211113313333133313331333132233112   <<    C11111211113313112113313331333133313331312111133133331333133313331322331123   >>      C11111211113313112113313331333133313331312111133133331333133313331322331122   >>