C31232233133313221211113313331333132313232233133313231323331333133311211   >>    C3123223313331322121111331333133313231323223313331323132333133313331121   <<    C31232233133313221211113313331333132313232233133313231323331333133311213   >>      C31232233133313221211113313331333132313232233133313231323331333133311212   >>