C11111211113313112113313331333133313331333132212111133133313331333132212313331   >>    C1111121111331311211331333133313331333133313221211113313331333133313221231333   <<    C11111211113313112113313331333133313331333132212111133133313331333132212313333   >>      C11111211113313112113313331333133313331333132212111133133313331333132212313332   >>