JSFiddle - React, Tailwind, and code Playground

JavaScript

var a = 1,
    b = 2,
    c = 3,
    d = 4,
    e = 5;

var multiply = function(a, b) {
    return a *  b;
}

var add = function(a, b) {
    return a +  b;
}

result = multiply(e, add(multiply(a, add(b,c)), d))

alert( result );