function stars(input) {

    let star = "*";

    let space = ` `;

    let num = Number(input.shift());

    let numER = Number(num - 2);

    console.log(star.repeat(num));

    for (let i = 1; i <= num - 2; i++) {
         console.log(star + space.repeat(num-2) + star);
    }
    console.log(star.repeat(num));

}