C313212111113331323312111133133313331333133313331333133313113313223313222321   >>    C31321211111333132331211113313331333133313331333133313331311331322331322232   <<    C313212111113331323312111133133313331333133313331333133313113313223313222323   >>      C313212111113331323312111133133313331333133313331333133313113313223313222322   >>