solve problem1

I wrote python. I am interested in Algorithm now, would begin solve problems from today when if I have some time.

a = []
h = 0 

for i in range(0,1000):
    if i % 3 == 0:
       a.append(i)
    elif i % 5 == 0:
       a.append(i)
for j in range(0,len(a)):
    h = h + a[j]
print h
>>> h
233168