RotateArray

function solve(arr) {
    "use strict";
    let numberOfRotations = arr.pop();
    numberOfRotations = Number(numberOfRotations);
    numberOfRotations %= arr.length;

    for(let i = 0; i < numberOfRotations; i++) {
        let lasElement = arr.pop();
        arr.unshift(lasElement);
    }

    console.log(arr.join(' '));
}