Currying is a technique in which a function accepts parameters and turns it into a sequence of functions, each of them take 1 parameter.

Example :-

multiply_numbers = -> (x,y) do
    x*y
end

doubler = multiply_numbers.curry.(2)
tripler = multiply_numbers.curry.(3)

puts doubler.(4)    #8
puts tripler.(4)    #12

In the above example, lambda take two parameters , and return the product of the two.
multiply_numbers.curry.(2) returns a lambda which takes only one parameter necessary for calculation.

Task

You are given a partially complete code. Your task is to fill in the blanks (_______).
Write a curry, which pre-fills with variable .