#! /usr/bin/python
def binom(n,k):
  "Binomialis egyutthatot szamol"
  if n==0 or k==0 or n==k:
   return 1
  else:
   return binom(n-1,k-1)+binom(n-1,k)
  
for i in range(2,7):
  print '%d alatt a %d = %d' % (i,i-2,binom(i,i-2))