C11112331312111112111133132313331333133313233313331333133322232321333131   >>    C1111233131211111211113313231333133313331323331333133313332223232133313   <<    C11112331312111112111133132313331333133313233313331333133322232321333133   >>      C11112331312111112111133132313331333133313233313331333133322232321333132   >>