C1231321123223331211111131211113313331333132212222311213123232321   >>    C123132112322333121111113121111331333133313221222231121312323232   <<    C1231321123223331211111131211113313331333132212222311213123232323   >>      C1231321123223331211111131211113313331333132212222311213123232322   >>