C11112331312111112111133133313331333133313331333133313331323223312321   >>    C1111233131211111211113313331333133313331333133313331333132322331232   <<    C11112331312111112111133133313331333133313331333133313331323223312323   >>      C11112331312111112111133133313331333133313331333133313331323223312322   >>