C31232233133313221211113313331333133313331212111133132331133132222231131   >>    C3123223313331322121111331333133313331333121211113313233113313222223113   <<    C31232233133313221211113313331333133313331212111133132331133132222231133   >>      C31232233133313221211113313331333133313331212111133132331133132222231132   >>