from collections import deque U = 3 * 10 ** 5 + 10 Usq = int(U ** 0.5 + 0.5) sq = [i*i for i in range(Usq)] dp = [U] * (U + 1) prev = [-1] * (U + 1) # p*pマス戻る、-1ならおわり for i, s in enumerate(sq): prev[s] = i dp[s] = i for i in range(1, U + 1): od = [] ev = [] for j, s in enumerate(sq): if s > i: break if s % 2 == 0: ev.append((j, s)) else: od.append((j, s)) for j, s in od: if dp[i] > dp[i - s] + j: prev[i] = j dp[i] = dp[i - s] + j for j, s in ev[::-1]: if dp[i] > dp[i - s] + j: prev[i] = j dp[i] = dp[i - s] + j N = int(input()) seq = [] i = N while i: p = prev[i] seq.append(p) i -= p * p seq.sort() odd = [] even = [] for s in seq: if s % 2 == 0: even.append(s) else: odd.append(s) ans = [] for s in odd: bit = "".join(["0" if i % 2 == 0 else "1" for i in range(s)]) ans.append(bit) even = deque(even) rev = 0 while even: if rev: s = even.popleft() else: s = even.pop() bit = "".join(["0" if i % 2 == 0 else "1" for i in range(s)]) if rev: bit = bit[::-1] ans.append(bit) rev = 1 - rev print("".join(ans))