n = int(input("Veuillez entrer le nieme nombre: "))
p = "1"
while (n > 1):
   q = ''
   i = 0
   l = len(p)
   while i < l:
      j = i
      i = i + 1
      while i < l and p[i] == p[j]:
         i = i + 1
      q = q + str(i-j) + p[j]
   n, p = n - 1, q
   print (int(p))