C1111233131211111211113313331333133313331333133313331333121111331323213131   >>    C111123313121111121111331333133313331333133313331333133312111133132321313   <<    C1111233131211111211113313331333133313331333133313331333121111331323213133   >>      C1111233131211111211113313331333133313331333133313331333121111331323213132   >>