// 1.

const add = () => {
    let counter = 0;

    const addNum = (a, b) => {
        const result = a + b;
        counter++;
        console.log(`The result is: ${result}`);
        console.log(`Fn is called: ${counter}`);
    }

    return addNum;
}

const checkFn = add();

checkFn(3, 4);
checkFn(3, 4); // Third task. The value is stored.