C1111233131211111211113313331333133313331333133313331333133313331322213131   >>    C111123313121111121111331333133313331333133313331333133313331333132221313   <<    C1111233131211111211113313331333133313331333133313331333133313331322213133   >>      C1111233131211111211113313331333133313331333133313331333133313331322213132   >>