C2132113313331312121111331333132313331311312111133132233313232221   >>    C213211331333131212111133133313231333131131211113313223331323222   <<    C2132113313331312121111331333132313331311312111133132233313232223   >>      C2132113313331312121111331333132313331311312111133132233313232222   >>