C1111233131211111211113313331333133313331312331333132333132231321   >>    C111123313121111121111331333133313331333131233133313233313223132   <<    C1111233131211111211113313331333133313331312331333132333132231323   >>      C1111233131211111211113313331333133313331312331333132333132231322   >>