C22213331333133313112331323133313331333133313211211113313223121311   >>    C2221333133313331311233132313331333133313331321121111331322312131   <<    C22213331333133313112331323133313331333133313211211113313223121313   >>      C22213331333133313112331323133313331333133313211211113313223121312   >>