C111123313121111121111331333133313331323112113321233133313331322221321   >>    C11112331312111112111133133313331333132311211332123313331333132222132   <<    C111123313121111121111331333133313331323112113321233133313331322221323   >>      C111123313121111121111331333133313331323112113321233133313331322221322   >>