prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  ProjectEuler -- Problem 1 -- solv2.py -- Error
  For the Input ```1000``` I get ```233366.4```. The correct answer should be ```233168``` 
  See [file](https://github.com/TheAlgorithms/Python/blob/master/Project%20Euler/Problem%2001/sol2.py)
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `Project Euler/Problem 01/sol2.py`
  Content:
  ```
  1 '''
  2 Problem Statement:
  3 If we list all the natural numbers below 10 that are multiples of 3 or 5,
  4 we get 3,5,6 and 9. The sum of these multiples is 23.
  5 Find the sum of all the multiples of 3 or 5 below N.
  6 '''
  7 from __future__ import print_function
  8 try:
  9     raw_input          # Python 2
  10 except NameError:
  11     raw_input = input  # Python 3
  12 n = int(raw_input().strip())
  13 sum = 0
  14 terms = (n-1)/3
  15 sum+= ((terms)*(6+(terms-1)*3))/2 #sum of an A.P.
  16 terms = (n-1)/5
  17 sum+= ((terms)*(10+(terms-1)*5))/2
  18 terms = (n-1)/15
  19 sum-= ((terms)*(30+(terms-1)*15))/2
  20 print(sum)
  21
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/Project Euler/Problem 01/sol2.py b/Project Euler/Problem 01/sol2.py
  --- a/Project Euler/Problem 01/sol2.py	
  +++ b/Project Euler/Problem 01/sol2.py	
  @@ -11,10 +11,10 @@
       raw_input = input  # Python 3
   n = int(raw_input().strip())
   sum = 0
  -terms = (n-1)/3
  -sum+= ((terms)*(6+(terms-1)*3))/2 #sum of an A.P.
  -terms = (n-1)/5
  -sum+= ((terms)*(10+(terms-1)*5))/2
  -terms = (n-1)/15
  -sum-= ((terms)*(30+(terms-1)*15))/2
  +terms = (n-1)//3
  +sum+= ((terms)*(6+(terms-1)*3))//2 #sum of an A.P.
  +terms = (n-1)//5
  +sum+= ((terms)*(10+(terms-1)*5))//2
  +terms = (n-1)//15
  +sum-= ((terms)*(30+(terms-1)*15))//2
   print(sum)
  
verification_info: {"golden_diff": "diff --git a/Project Euler/Problem 01/sol2.py b/Project Euler/Problem 01/sol2.py\n--- a/Project Euler/Problem 01/sol2.py\t\n+++ b/Project Euler/Problem 01/sol2.py\t\n@@ -11,10 +11,10 @@\n     raw_input = input  # Python 3\n n = int(raw_input().strip())\n sum = 0\n-terms = (n-1)/3\n-sum+= ((terms)*(6+(terms-1)*3))/2 #sum of an A.P.\n-terms = (n-1)/5\n-sum+= ((terms)*(10+(terms-1)*5))/2\n-terms = (n-1)/15\n-sum-= ((terms)*(30+(terms-1)*15))/2\n+terms = (n-1)//3\n+sum+= ((terms)*(6+(terms-1)*3))//2 #sum of an A.P.\n+terms = (n-1)//5\n+sum+= ((terms)*(10+(terms-1)*5))//2\n+terms = (n-1)//15\n+sum-= ((terms)*(30+(terms-1)*15))//2\n print(sum)\n", "issue": "ProjectEuler -- Problem 1 -- solv2.py -- Error\nFor the Input ```1000``` I get ```233366.4```. The correct answer should be ```233168``` \r\nSee [file](https://github.com/TheAlgorithms/Python/blob/master/Project%20Euler/Problem%2001/sol2.py)\n", "before_files": [{"content": "'''\nProblem Statement:\nIf we list all the natural numbers below 10 that are multiples of 3 or 5,\nwe get 3,5,6 and 9. The sum of these multiples is 23.\nFind the sum of all the multiples of 3 or 5 below N.\n'''\nfrom __future__ import print_function\ntry:\n    raw_input          # Python 2\nexcept NameError:\n    raw_input = input  # Python 3\nn = int(raw_input().strip())\nsum = 0\nterms = (n-1)/3\nsum+= ((terms)*(6+(terms-1)*3))/2 #sum of an A.P.\nterms = (n-1)/5\nsum+= ((terms)*(10+(terms-1)*5))/2\nterms = (n-1)/15\nsum-= ((terms)*(30+(terms-1)*15))/2\nprint(sum)\n", "path": "Project Euler/Problem 01/sol2.py"}], "after_files": [{"content": "'''\nProblem Statement:\nIf we list all the natural numbers below 10 that are multiples of 3 or 5,\nwe get 3,5,6 and 9. The sum of these multiples is 23.\nFind the sum of all the multiples of 3 or 5 below N.\n'''\nfrom __future__ import print_function\ntry:\n    raw_input          # Python 2\nexcept NameError:\n    raw_input = input  # Python 3\nn = int(raw_input().strip())\nsum = 0\nterms = (n-1)//3\nsum+= ((terms)*(6+(terms-1)*3))//2 #sum of an A.P.\nterms = (n-1)//5\nsum+= ((terms)*(10+(terms-1)*5))//2\nterms = (n-1)//15\nsum-= ((terms)*(30+(terms-1)*15))//2\nprint(sum)\n", "path": "Project Euler/Problem 01/sol2.py"}]}