C31232233133313221211113313331333132313331323333321131211111333132233211   >>    C3123223313331322121111331333133313231333132333332113121111133313223321   <<    C31232233133313221211113313331333132313331323333321131211111333132233213   >>      C31232233133313221211113313331333132313331323333321131211111333132233212   >>