C313212111113331323312111133133313331333133313331333133313113313113313222322121   >>    C31321211111333132331211113313331333133313331333133313331311331311331322232212   <<    C313212111113331323312111133133313331333133313331333133313113313113313222322123   >>      C313212111113331323312111133133313331333133313331333133313113313113313222322122   >>