C313212111113331323312111133133313331333133313331333133313331333133112113211   >>    C31321211111333132331211113313331333133313331333133313331333133313311211321   <<    C313212111113331323312111133133313331333133313331333133313331333133112113213   >>      C313212111113331323312111133133313331333133313331333133313331333133112113212   >>