function solution(s) {
let answer = '';
s=s.split(' ').sort((a,b)=>a-b);
answer += s[0] + ' ' + s[s.length-1];
return answer;
}
console.log(solution("1 2 3 4"));
function solution(s) {
const arr = s.split(' ');
return Math.min(...arr)+' '+Math.max(...arr);
}