C313212111113331323312111133133313331333133313331312111133132233132313232221   >>    C31321211111333132331211113313331333133313331333131211113313223313231323222   <<    C313212111113331323312111133133313331333133313331312111133132233132313232223   >>      C313212111113331323312111133133313331333133313331312111133132233132313232222   >>