import sys
input = sys.stdin.readline

K=int(input())

A=[1,0,0,0,1,0,1,0,2,1]
SUM10=sum(A)

def uni_score(x):
    S=list(map(int,list(str(x))))

    ANS=0
    for s in S:
        ANS+=A[s]

    return ANS
def score(x):
    ANS=0

    while x>0 and x%10!=9:
        ANS+=uni_score(x)
        x-=1

    if x==0:
        return ANS
    elif x==9:
        return ANS+SUM10-1
    else:
        ANS+=(x//10+1)*SUM10-1

        return ANS+score(x//10)*10

#print(score(16))
#print(score(17))
#print(score(99193752409910740))


NOW=0

for i in range(1,1000):
    NOW+=uni_score(i)

    assert NOW==score(i)

OK=-1
NG=10**20

while NG>OK+1:
    mid=(OK+NG)//2

    if score(mid)>K:
        NG=mid
    else:
        OK=mid

for i in range(max(1,OK-10),OK+10):
    if score(i)==K:
        print(i)
        break
else:
    print(-1)