--------
x: 6 float ,.;:()[]<>{}*&^%!-=+|/? 
y: 6 float ,.;:()[]<>{}*&^%!-=+|/? 
z: 6 float ,.;:()[]<>{}*&^%!-=+|/? 
w: 6 float ,.;:()[]<>{}*&^%!-=+|/? 

