from itertools import accumulate


def accum(a: list):
    acc = list(accumulate(a))
    return lambda l, r: acc[r] - (acc[l-1] if l > 0 else 0)


def solve(n: int, k: int):
    assert k > 1

    a = []
    i = 0
    while True:
        x = pow(i, k)
        if x > n: break
        a.append(x)
        i += 1

    acc = accum(a)
    ans = []
    for i in range(1, len(a)):
        if a[i] > n: break
        lo = i
        hi = len(a)-1
        while lo <= hi:
            m = (lo + hi) // 2
            x = acc(i, m)
            if x == n:
                ans.append((k, i, m))
                break
            elif x > n:
                hi = m - 1
            else:
                lo = m + 1

    return ans


N = int(input())
ans = []
for i in range(2, 41):
    if pow(2, i) > N: break
    res = solve(N, i)
    ans.extend(res)


print(len(ans))
for k, l, r in ans:
    print(k, l, r)