C11112331312111112111133133313331333133112111111331322331311321   >>    C1111233131211111211113313331333133313311211111133132233131132   <<    C11112331312111112111133133313331333133112111111331322331311323   >>      C11112331312111112111133133313331333133112111111331322331311322   >>