C31321211111333132331211113313331333133313331333133313331333133112321311   >>    C3132121111133313233121111331333133313331333133313331333133313311232131   <<    C31321211111333132331211113313331333133313331333133313331333133112321313   >>      C31321211111333132331211113313331333133313331333133313331333133112321312   >>