C22213331333133313112331323133313331333133313331333133313231333133313121121211   >>    C2221333133313331311233132313331333133313331333133313331323133313331312112121   <<    C22213331333133313112331323133313331333133313331333133313231333133313121121213   >>      C22213331333133313112331323133313331333133313331333133313231333133313121121212   >>