C11112331312111112111133133313331333132212111133133313113313331333132313111221   >>    C1111233131211111211113313331333133313221211113313331311331333133313231311122   <<    C11112331312111112111133133313331333132212111133133313113313331333132313111223   >>      C11112331312111112111133133313331333132212111133133313113313331333132313111222   >>