C313212111133131211331333133313331333133313231333133313331333133313331121231221   >>    C31321211113313121133133313331333133313331323133313331333133313331333112123122   <<    C313212111133131211331333133313331333133313231333133313331333133313331121231223   >>      C313212111133131211331333133313331333133313231333133313331333133313331121231222   >>