C31232233133313221211113313331333132313331333133313231322123121   >>    C3123223313331322121111331333133313231333133313331323132212312   <<    C31232233133313221211113313331333132313331333133313231322123123   >>      C31232233133313221211113313331333132313331333133313231322123122   >>