C313212111133131211331333133313331333133311233133313121111133313331323221221   >>    C31321211113313121133133313331333133313331123313331312111113331333132322122   <<    C313212111133131211331333133313331333133311233133313121111133313331323221223   >>      C313212111133131211331333133313331333133311233133313121111133313331323221222   >>