C1111233131211111211113313331333133313331333133313331333133313233121111331321   >>    C111123313121111121111331333133313331333133313331333133313331323312111133132   <<    C1111233131211111211113313331333133313331333133313331333133313233121111331323   >>      C1111233131211111211113313331333133313331333133313331333133313233121111331322   >>