C313212111133131211331333133313331333133313231333133313331333133313223121321   >>    C31321211113313121133133313331333133313331323133313331333133313331322312132   <<    C313212111133131211331333133313331333133313231333133313331333133313223121323   >>      C313212111133131211331333133313331333133313231333133313331333133313223121322   >>