SOURCE

n = 8285
function solve(n) {
    // write code here
    var a = n.toString()
    var temp = a.split('')
    console.log(temp)
    function setNum(kk) {
        var sum = 0
        for (key in kk) {
            sum += Math.pow(parseInt(kk[key]), 2)
        }
        return sum
    }
    //console.log(setNum(temp))
    var done = setNum(temp)
    var setter = 0
    while (setter < 100) {
        var u = done.toString()
        var v = u.split('')
        done = setNum(v)
        setter++
        //console.log(done)
    }
    if(done == 1)return true
    else return false
}
console.log(solve(n))