C213211331333131212111133133313231333131131211113313331322333131   >>    C21321133133313121211113313331323133313113121111331333132233313   <<    C213211331333131212111133133313231333131131211113313331322333133   >>      C213211331333131212111133133313231333131131211113313331322333132   >>