arr = [0] * 10
arr[0] = 1
for i in range(1, 10):
    arr[i] = arr[i-1] * i
n = int(input())
result = ""
while n > 0:
    for i in range(9, 0, -1):
        if arr[i] <= n:
            result += str(i)
            n -= arr[i]
            break
print(result[::-1])