C1231321123223331211111131211113313331333132313331333232233121222212232132311   >>    C123132112322333121111113121111331333133313231333133323223312122221223213231   <<    C1231321123223331211111131211113313331333132313331333232233121222212232132313   >>      C1231321123223331211111131211113313331333132313331333232233121222212232132312   >>