C313212111113331323312111133133313331333133313331333133313331311331323212321   >>    C31321211111333132331211113313331333133313331333133313331333131133132321232   <<    C313212111113331323312111133133313331333133313331333133313331311331323212323   >>      C313212111113331323312111133133313331333133313331333133313331311331323212322   >>