C11111211113313112113313331333133313331333132313331333133313331211111322323321   >>    C1111121111331311211331333133313331333133313231333133313331333121111132232332   <<    C11111211113313112113313331333133313331333132313331333133313331211111322323323   >>      C11111211113313112113313331333133313331333132313331333133313331211111322323322   >>