C313212111113331323312111133133313331333133313331333133313331331123121311   >>    C31321211111333132331211113313331333133313331333133313331333133112312131   <<    C313212111113331323312111133133313331333133313331333133313331331123121313   >>      C313212111113331323312111133133313331333133313331333133313331331123121312   >>