fun main() {
    val INF = 1000000
    val n = readLine()!!.toInt()
    val dp = Array(n + 1){INF}
    val memo = Array(n + 1){mutableListOf<Int>()}
    dp[0] = 0
    for(i in 1 until n + 1)for(j in 1 until Math.sqrt(i.toDouble()).toInt() + 1){
        if(dp[i] == dp[i - j * j] + j)memo[i].add(j)
        if(dp[i] > dp[i - j * j] + j){
            dp[i] = dp[i - j * j] + j
            memo[i] = mutableListOf<Int>(j)
        }
    }
    val dat = cal(memo,n,mutableListOf())
    var answer = "2"
    for(i in dat.indices){
        var result = ""
        var suf = "0"
        for(j in dat[i]){
            for(k in 0 until j){
                result+=suf
                suf=rev(suf)
            }
            suf=rev(suf)
        }
        if(result.compareTo(answer) < 0)answer = result
    }
    println(answer)
}
fun rev(suf:String) = if(suf=="0")"1" else "0"
fun cal(memo:Array<MutableList<Int>>,i:Int,result:MutableList<Int>):List<List<Int>>{
    if(i == 0)return listOf<List<Int>>(result.toList())
    var ret = mutableListOf<List<Int>>()
    for(j in memo[i]){
        ret.addAll(cal(memo,i - j * j,(result + j).toMutableList()))
    }
    return ret
}