C31232233133313221211113313331333133313331212111113133112323131   >>    C3123223313331322121111331333133313331333121211111313311232313   <<    C31232233133313221211113313331333133313331212111113133112323133   >>      C31232233133313221211113313331333133313331212111113133112323132   >>