import math
N=int(input())
lis=[]
for x in range(math.ceil(math.sqrt(N))+1):
    for y in range(x,math.ceil(math.sqrt(N))+1):
        if x==0 and y==0:
            continue
        #print(x,y)
        z=-1
        if (N-x*y)>0 and (N-x*y)/(x+y)%1==0:
            z=(N-x*y)//(x+y)
        elif N-x*y==0:
            z=0
        if z!=-1:
            lis.append((x,y,z))
            lis.append((x,z,y))
            lis.append((y,x,z))
            lis.append((y,z,x))
            lis.append((z,x,y))
            lis.append((z,y,x))
lis=set(lis)
print(len(lis))
for l in lis:
    print(*l)