def divisor(n):
    ans = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            ans.append(i)
            if i*i != n:
                ans.append(n//i)
    return ans

N = int(input())

INF = 1<<60

div = divisor(N)

ans = []
for d in div:
    ans.append((d, N//d, 0))
    ans.append((d, 0, N//d))
    ans.append((0, d, N//d))

for x in range(1, INF):
    if N-x < x: break
    for y in range(1, INF):
        if N-x*y < x+y: break
        if (N-x*y)%(x+y) == 0:
            ans.append((x, y, (N-x*y)//(x+y)))

print(len(ans))
for x, y, z in ans:
    print(x, y, z)