C1231321123223331211111131211113313331333132313332223312132132131   >>    C123132112322333121111113121111331333133313231333222331213213213   <<    C1231321123223331211111131211113313331333132313332223312132132133   >>      C1231321123223331211111131211113313331333132313332223312132132132   >>