C11112331312111112111133133313331333133313112113313331333133313331323223313331   >>    C1111233131211111211113313331333133313331311211331333133313331333132322331333   <<    C11112331312111112111133133313331333133313112113313331333133313331323223313333   >>      C11112331312111112111133133313331333133313112113313331333133313331323223313332   >>