# your code goes here
def differenceofsum(n, m):
lst = []
nlst = []
for i in range(1, m + 1):
if i % n == 0:
lst.append(i)
else:
nlst.append(i)
s = sum(lst)
ns = sum(nlst)
diff = ns - s
if diff < 0:
diff *= -1
return (diff)
print(differenceofsum(2, 10))
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgpkZWYgZGlmZmVyZW5jZW9mc3VtKG4sIG0pOgogICAgbHN0ID0gW10KICAgIG5sc3QgPSBbXQogICAgZm9yIGkgaW4gcmFuZ2UoMSwgbSArIDEpOgogICAgICAgIGlmIGkgJSBuID09IDA6CiAgICAgICAgICAgIGxzdC5hcHBlbmQoaSkKICAgICAgICBlbHNlOgogICAgICAgICAgICBubHN0LmFwcGVuZChpKQoKICAgIHMgPSBzdW0obHN0KQogICAgbnMgPSBzdW0obmxzdCkKCiAgICBkaWZmID0gbnMgLSBzCiAgICBpZiBkaWZmIDwgMDoKICAgICAgICBkaWZmICo9IC0xCgogICAgcmV0dXJuIChkaWZmKQoKCnByaW50KGRpZmZlcmVuY2VvZnN1bSgyLCAxMCkpCg==