C313212111133131211331333133313331333133313231333133313331333133313222322331311   >>    C31321211113313121133133313331333133313331323133313331333133313331322232233131   <<    C313212111133131211331333133313331333133313231333133313331333133313222322331313   >>      C313212111133131211331333133313331333133313231333133313331333133313222322331312   >>