INF = 0x1fffffffffffffff

def priority(a):
    return a if a & 1 else INF - a

n = int(input())
dp = [INF] * (n + 1)
mn = [INF] * (n + 1)
mx = [-INF] * (n + 1)
dp[0] = 0
for i in range(n):
    j = 1
    while i + j * j <= n:
        if dp[i + j * j] > dp[i] + j:
            dp[i + j * j] = dp[i] + j
            mn[i + j * j] = j
            mx[i + j * j] = j
        
        elif(dp[i + j * j] == dp[i] + j):
            if priority(mn[i + j * j]) > priority(j):
                mn[i + j * j] = j
            
            if priority(mx[i + j * j]) < priority(j):
                mx[i + j * j] = j
        j += 1
c = 48
ans = ""
while n:
    cnt = mn[n] if c == 48 else mx[n]
    n -= cnt * cnt;
    for i in range(cnt):
        ans += chr(c)
        c ^= 1
    
    c ^= 1;

print(ans)