C31232233133313221211113313331333132313331323231323132313223121   >>    C3123223313331322121111331333133313231333132323132313231322312   <<    C31232233133313221211113313331333132313331323231323132313223123   >>      C31232233133313221211113313331333132313331323231323132313223122   >>