C111123313121111121111331333133313331323112113321233133313331322233313221   >>    C11112331312111112111133133313331333132311211332123313331333132223331322   <<    C111123313121111121111331333133313331323112113321233133313331322233313223   >>      C111123313121111121111331333133313331323112113321233133313331322233313222   >>