C31321211111333132331211113313331333133313331333133313331311331322221   >>    C3132121111133313233121111331333133313331333133313331333131133132222   <<    C31321211111333132331211113313331333133313331333133313331311331322223   >>      C31321211111333132331211113313331333133313331333133313331311331322222   >>