C11111211113313112113313331333133313331333132212111133133313331312323111   >>    C1111121111331311211331333133313331333133313221211113313331333131232311   <<    C11111211113313112113313331333133313331333132212111133133313331312323113   >>      C11111211113313112113313331333133313331333132212111133133313331312323112   >>