C313212111113331323312111133133313331333133313331333133112111133132313231323211   >>    C31321211111333132331211113313331333133313331333133313311211113313231323132321   <<    C313212111113331323312111133133313331333133313331333133112111133132313231323213   >>      C313212111113331323312111133133313331333133313331333133112111133132313231323212   >>