C1111233131211111211113313331333133313331333133313331333133313121133132331331   >>    C111123313121111121111331333133313331333133313331333133313331312113313233133   <<    C1111233131211111211113313331333133313331333133313331333133313121133132331333   >>      C1111233131211111211113313331333133313331333133313331333133313121133132331332   >>