C312312111133113313231333133313331333133313331333133313113313111121   >>    C31231211113311331323133313331333133313331333133313331311331311112   <<    C312312111133113313231333133313331333133313331333133313113313111123   >>      C312312111133113313231333133313331333133313331333133313113313111122   >>