C313212111133131211331333133313331333133313231333133313331333133112312113313221   >>    C31321211113313121133133313331333133313331323133313331333133313311231211331322   <<    C313212111133131211331333133313331333133313231333133313331333133112312113313223   >>      C313212111133131211331333133313331333133313231333133313331333133112312113313222   >>