C1231321123223331211111131211113313331333132313331333222133121213223312331   >>    C123132112322333121111113121111331333133313231333133322213312121322331233   <<    C1231321123223331211111131211113313331333132313331333222133121213223312333   >>      C1231321123223331211111131211113313331333132313331333222133121213223312332   >>