C313212111133131211331333133313331333133313231333133313331333132322322211   >>    C31321211113313121133133313331333133313331323133313331333133313232232221   <<    C313212111133131211331333133313331333133313231333133313331333132322322213   >>      C313212111133131211331333133313331333133313231333133313331333132322322212   >>