C1231321123223331211111131211113313331333132313331333112233232113231132331231   >>    C123132112322333121111113121111331333133313231333133311223323211323113233123   <<    C1231321123223331211111131211113313331333132313331333112233232113231132331233   >>      C1231321123223331211111131211113313331333132313331333112233232113231132331232   >>