C313212111133131211331333133313331333133313231323133313331333133313331322332211   >>    C31321211113313121133133313331333133313331323132313331333133313331333132233221   <<    C313212111133131211331333133313331333133313231323133313331333133313331322332213   >>      C313212111133131211331333133313331333133313231323133313331333133313331322332212   >>