C313212111133131211331333133313331333133313231333133313331333133313231221111   >>    C31321211113313121133133313331333133313331323133313331333133313331323122111   <<    C313212111133131211331333133313331333133313231333133313331333133313231221113   >>      C313212111133131211331333133313331333133313231333133313331333133313231221112   >>