C2132113313331312121111331333132313331311312111133133313221132322121   >>    C213211331333131212111133133313231333131131211113313331322113232212   <<    C2132113313331312121111331333132313331311312111133133313221132322123   >>      C2132113313331312121111331333132313331311312111133133313221132322122   >>