import std.conv, std.functional, std.range, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.complex, std.container, std.math, std.numeric, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken.to!int; } long readLong() { return readToken.to!long; } real readReal() { return readToken.to!real; } bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } } bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } } int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; } int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); } int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); } enum LIM = 3 * 10^^5 + 10; void main() { auto dp = new int[LIM]; dp[] = LIM; dp[0] = 0; foreach (n; 1 .. LIM) { for (int k = 1; k^^2 <= n; ++k) { chmin(dp[n], dp[n - k^^2] + k); } } debug { writeln("max dp = ", dp.maxElement); } try { for (; ; ) { const N = readInt(); const L = dp[N]; debug { writeln("L = ", L); } string ans; int now = N, last = 1, k = 0; foreach (i; 0 .. L) { // check 0 int c; if (last == 0) { const n = now - k^^2; if (n >= 0 && i + dp[n] <= L) { c = 0; } else { c = 1; } } else { c = 1; foreach (j; i + 1 .. L + 1) { const n = now - (k + (j - i))^^2; if (n >= 0 && j + dp[n] <= L) { c = 0; } } } ans ~= cast(char)('0' + c); if (last == c) { now -= k^^2; k = 1; } else { last = c; ++k; } } writeln(ans); } } catch (EOFException e) { } }