C111123313331323113313331333133313331122112312111133133313331333131133221323131   >>    C11112331333132311331333133313331333112211231211113313331333133313113322132313   <<    C111123313331323113313331333133313331122112312111133133313331333131133221323133   >>      C111123313331323113313331333133313331122112312111133133313331333131133221323132   >>