C11112331312111112111133133313331333133313122111133133313113313331323213232321   >>    C1111233131211111211113313331333133313331312211113313331311331333132321323232   <<    C11112331312111112111133133313331333133313122111133133313113313331323213232323   >>      C11112331312111112111133133313331333133313122111133133313113313331323213232322   >>