C313212111113331323312111133133313331333133313331333133313331333133112133311321   >>    C31321211111333132331211113313331333133313331333133313331333133313311213331132   <<    C313212111113331323312111133133313331333133313331333133313331333133112133311323   >>      C313212111113331323312111133133313331333133313331333133313331333133112133311322   >>