K = int(input())

maru = [1,0,0,0,1,0,1,0,2,1,]
s = sum(maru)
t = s - 1
def calc(N):
    l = []
    while N:
        l.append(N % 10)
        N //= 10
    l = l[::-1]
    n = len(l)
    dp = [0] * n
    num = [0] * n
    for i in range(1,l[0]):
        dp[0] += maru[i]
        num[0] += 1
    same = maru[l[0]]
    for i in range(1,n):
        dp[i] += dp[i-1] * 10 + num[i-1] * s
        num[i] += num[i-1] * 10
        for j in range(l[i]):
            dp[i] += same + maru[j]
            num[i] += 1
        dp[i] += t
        num[i] += 9
        same += maru[l[i]]
    return dp[-1] + same

import sys
if K == 0:
    print(1)
    exit()
start = 1
end = 10 ** 18
while end - start > 1:
    mid = end + start >> 1
    if calc(mid) < K:
        start = mid
    else:
        end = mid
if calc(end) == K:
    print(end)
else:
    print(-1)