C313212111113331323312111133133313331333133313331333133313231323132322311   >>    C31321211111333132331211113313331333133313331333133313331323132313232231   <<    C313212111113331323312111133133313331333133313331333133313231323132322313   >>      C313212111113331323312111133133313331333133313331333133313231323132322312   >>