C313212111133131211331333133313331333133312111133133313331333133313232212321131   >>    C31321211113313121133133313331333133313331211113313331333133313331323221232113   <<    C313212111133131211331333133313331333133312111133133313331333133313232212321133   >>      C313212111133131211331333133313331333133312111133133313331333133313232212321132   >>