C313212111113331323312111133133313331333133313331333133313113313113313232321311   >>    C31321211111333132331211113313331333133313331333133313331311331311331323232131   <<    C313212111113331323312111133133313331333133313331333133313113313113313232321313   >>      C313212111113331323312111133133313331333133313331333133313113313113313232321312   >>