C11112331312111112111133133313331311331322331323133313331322332321   >>    C1111233131211111211113313331333131133132233132313331333132233232   <<    C11112331312111112111133133313331311331322331323133313331322332323   >>      C11112331312111112111133133313331311331322331323133313331322332322   >>