C31232233133313221211113313331333132313331333133313331333133313331333233311211   >>    C3123223313331322121111331333133313231333133313331333133313331333133323331121   <<    C31232233133313221211113313331333132313331333133313331333133313331333233311213   >>      C31232233133313221211113313331333132313331333133313331333133313331333233311212   >>