C313212111113331323312111133133313331333133313331333133313331333133112132121   >>    C31321211111333132331211113313331333133313331333133313331333133313311213212   <<    C313212111113331323312111133133313331333133313331333133313331333133112132123   >>      C313212111113331323312111133133313331333133313331333133313331333133112132122   >>