**Project Euler: Problem 1: Multiples of 3 and 5**

So did this code. But no test are running an it says syntax error. Why?

```
def multiplesOf3and5(n):
sum = 0
for x in range(1, n, 1):
if (x%3) == 0 or (x%5) == 0:
sum += x
return sum
multiplesOf3and5(49)
```

**Your browser information:**

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36`

.

**Challenge:** Problem 1: Multiples of 3 and 5

**Link to the challenge:**