C11111211113313112113313331333133313331333132313331333133313331121131322321   >>    C1111121111331311211331333133313331333133313231333133313331333112113132232   <<    C11111211113313112113313331333133313331333132313331333133313331121131322323   >>      C11111211113313112113313331333133313331333132313331333133313331121131322322   >>