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Problem A
Threes and Fives
Languages
en
is
You are given a positive integer $n$ and should print the sum of positive integers $< n$ which are a multiple of either $3$ or $5$.
Input
The first and only line of input contains a positive integer $n \leq 10^{18}$.
Output
Print the sum of positive integers $< n$ which are a multiple of three or five.
| Sample Input 1 | Sample Output 1 |
|---|---|
1000 |
233168 |
