C31232233133313221211113313331333133313331212111113331323133112121   >>    C3123223313331322121111331333133313331333121211111333132313311212   <<    C31232233133313221211113313331333133313331212111113331323133112123   >>      C31232233133313221211113313331333133313331212111113331323133112122   >>