from math import log10

def pick(x, lis, out, a = 0):
  if x == 0:
    out.append([a, lis])
    return
  a *= 10
  for i in xrange(len(lis)):
    tmp = lis[:]
    tmpa = a + lis[i]
    tmp.pop(i)
    pick(x - 1, tmp, out, tmpa)



def test(x, n):
  tmp = x[:]
  while n > 0:
    if tmp.count(n % 10):
      tmp.remove(n % 10)
      n /= 10
    else:
      return False
  if len(tmp) > 0:
    return False
  return True

total = []

tt = []
pick(1, [1,2,3,4,5,6,7,8,9], tt)
for i in tt:
  yy = []
  pick(4, i[1], yy)
  for j in yy:
    if test(j[1], i[0] * j[0]):
      tmp = i[0] * j[0]
      if total.count(tmp) == 0:
        total.append(tmp)

tt = []
pick(2, [1,2,3,4,5,6,7,8,9], tt)
for i in tt:
  yy = []
  pick(3, i[1], yy)
  for j in yy:
    if test(j[1], i[0] * j[0]):
      tmp = i[0] * j[0]
      if total.count(tmp) == 0:
        total.append(tmp)


print sum(total)