import sys, time, random
from collections import deque, Counter, defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
import itertools

n = ii()
ans = []
for x in range(1, n + 1):
    if x * x > n:
        break
    if n % x == 0:
        for v in itertools.permutations([0, n // x, x]):
            ans.append(tuple(v))

for x in range(1, n + 1):
    if x * x > n:
        break
    for y in range(1, n // x + 1):
        if (n - x * y) % (x + y) == 0:
            z = (n - x * y) // (x + y)
            for v in itertools.permutations([x, y, z]):
                ans.append(tuple(v))

ans = list(set(ans))
print(len(ans))
for v in ans:
    print(*v)