C1231321123223331211111131211113313331333132313332323232223233112131   >>    C123132112322333121111113121111331333133313231333232323222323311213   <<    C1231321123223331211111131211113313331333132313332323232223233112133   >>      C1231321123223331211111131211113313331333132313332323232223233112132   >>