C31232233133313221211113313331333133313311211231211113313112113313123313311   >>    C3123223313331322121111331333133313331331121123121111331311211331312331331   <<    C31232233133313221211113313331333133313311211231211113313112113313123313313   >>      C31232233133313221211113313331333133313311211231211113313112113313123313312   >>