def f(fir, sz):
    ret = ''
    if fir == 0:
        ret += '01' * (sz // 2)
        if sz % 2 == 1:
            ret += '0'
    else:
        ret += '10' * (sz // 2)
        if sz % 2 == 1:
            ret += '1'
    return ret

def g(l):
    odd, even = [], []
    for i in l:
        if i % 2 == 1:
            odd.append(i)
        else:
            even.append(i)
    odd = sorted(odd)
    even = sorted(even)
    res = ''
    for i in odd:
        res += f(0, i)
    fir = 0
    for i in even:
        res += f(fir, i)
        fir ^= 1
    return res

n = int(input())
res = '2'
for i in range(int(n ** 0.5), 0, -1):
    q = [i]
    m = n - i ** 2
    while m:
        p = int(m ** 0.5)
        q.append(p)
        m -= p ** 2
    if res == '2':
        res = g(q)
    else:
        s = g(q)
        if len(s) < len(res):
            res = s
        elif len(s) == len(res):
            res = min(res, s)
print(res)