C313212111133131211331333133313331333131121133133313223313231323211   >>    C31321211113313121133133313331333133313112113313331322331323132321   <<    C313212111133131211331333133313331333131121133133313223313231323213   >>      C313212111133131211331333133313331333131121133133313223313231323212   >>