C22213331333133313112331323133313331333133313233211113313231231   >>    C2221333133313331311233132313331333133313331323321111331323123   <<    C22213331333133313112331323133313331333133313233211113313231233   >>      C22213331333133313112331323133313331333133313233211113313231232   >>