N=int(input())
result=[]
for x in range(1,N):
  for y in range(1,N):
    if x*y>=N:
      break
    k=N-x*y
    if k%(x+y)==0:
      z=k//(x+y)
      result.append((x,y,z))
for a in range(1,N+1):
  if N%a==0:
    result.append((0,a,N//a))
    result.append((a,0,N//a))
    result.append((a,N//a,0))
print(len(result))
for i in range(len(result)):
  a,b,c=result[i][:]
  print(a,b,c)