n = int(input())

ans = 0
lis = []
used = set()

for x in range(int(n**(0.5))+2):
    for y in range(x,int(n**(0.5))+2):
        ue = n-x*y
        if ue >= 0:
            if x == y == 0:
                continue
            if (n-x*y)%(x+y) == 0:
                z = (n-(x*y))//(x+y)
                if x <= y <= z and x*y+y*z+x*z == n:
                    tmp = [x,y,z]
                    for i in tmp:
                        for j in tmp:
                            for k in tmp:
                                if (i,j,k) not in used and i*j+j*k+i*k == n:
                                    ans += 1
                                    used.add((i,j,k))
                                    lis.append([i,j,k])
print(ans)
for li in lis:
    print(*li)