C31232233133313221211113313331333132313331333133313331333132233132211   >>    C3123223313331322121111331333133313231333133313331333133313223313221   <<    C31232233133313221211113313331333132313331333133313331333132233132213   >>      C31232233133313221211113313331333132313331333133313331333132233132212   >>