C1231321123223331211111131211113313331333132322131213221333112331   >>    C123132112322333121111113121111331333133313232213121322133311233   <<    C1231321123223331211111131211113313331333132322131213221333112333   >>      C1231321123223331211111131211113313331333132322131213221333112332   >>