C31232233133313221211113313331333132313331333133313331333133311211331323132211   >>    C3123223313331322121111331333133313231333133313331333133313331121133132313221   <<    C31232233133313221211113313331333132313331333133313331333133311211331323132213   >>      C31232233133313221211113313331333132313331333133313331333133311211331323132212   >>