C1231321123223331211111131211113313331333132212222311213121333131   >>    C123132112322333121111113121111331333133313221222231121312133313   <<    C1231321123223331211111131211113313331333132212222311213121333133   >>      C1231321123223331211111131211113313331333132212222311213121333132   >>