add a b = a + b
add3 a b c = a + b + c

addtwo = add 2
myadd = add 21

superadd  = add3 14 14

mysuperadd = (+) 20

main = do
    print (addtwo 40); -- -> 42
    print (myadd 21); -- -> 42
    print (superadd 14); -- -> 42
    print (mysuperadd 22); -- -> 42