C1231321123223331211111131211113313331333132313332223312131322331331   >>    C123132112322333121111113121111331333133313231333222331213132233133   <<    C1231321123223331211111131211113313331333132313332223312131322331333   >>      C1231321123223331211111131211113313331333132313332223312131322331332   >>