C11111211113313112113313331333133313231311331333133112213331322133321   >>    C1111121111331311211331333133313331323131133133313311221333132213332   <<    C11111211113313112113313331333133313231311331333133112213331322133323   >>      C11111211113313112113313331333133313231311331333133112213331322133322   >>