def factor(n,li=[]):
  for i in range(2,n+1):
    if n%i==0:
      li.append(i)
      factor(n//i, li)
      return li

F = int(1000/2)
li = factor(F)


def P(n, p=3):
    li2 = []
    for i in range(p):
        temp=[]
        t = n
        j=0
        while t>=0:
            temp.append(j)
            t-=j
            j+=1
        li2.append(temp)
    return li2

print(P(3))