C131121333133313233213331333133313331333132333133313331323133313331333211   >>    C13112133313331323321333133313331333133313233313331333132313331333133321   <<    C131121333133313233213331333133313331333132333133313331323133313331333213   >>      C131121333133313233213331333133313331333132333133313331323133313331333212   >>