cube
V-representation
begin
8 4 rational
 1  1  1  1 
 1 -1  1  1 
 1  1 -1  1 
 1 -1 -1  1 
 1  1  1 -1 
 1 -1  1 -1 
 1  1 -1 -1 
 1 -1 -1 -1 
end