Problem 3. Circle Perimeter and Area

let input = [
    '15'
    ];

let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

let radius = Number(gets());

let perimeter = (2 * Math.PI * radius).toFixed(2);
let area = (Math.PI * (Math.pow(radius, 2))).toFixed(2);
print(perimeter);
print(area);