C31321211111333132331211113313331333133313331333133313233321311   >>    C3132121111133313233121111331333133313331333133313331323332131   <<    C31321211111333132331211113313331333133313331333133313233321313   >>      C31321211111333132331211113313331333133313331333133313233321312   >>