diff --git a/src/Python/Problems001-050/Problem049.py b/src/Python/Problems001-050/Problem049.py
index bb89cfe..6d5e37f 100644
--- a/src/Python/Problems001-050/Problem049.py
+++ b/src/Python/Problems001-050/Problem049.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 """
 Created on 18 Sep 2021
 
@@ -9,33 +9,39 @@ Solution for problem 49 of Project Euler
 https://projecteuler.net/problem=49
 """
 
-from utils import timeit, list_primes
+from utils import list_primes, timeit
 
 
 @timeit("Problem 49")
 def compute():
     """
-    The arithmetic sequence, 1487, 4817, 8147, in which each of the terms 
-    increases by 3330, is unusual in two ways: 
-    (i) each of the three terms are prime, and, 
+    The arithmetic sequence, 1487, 4817, 8147, in which each of the terms
+    increases by 3330, is unusual in two ways:
+    (i) each of the three terms are prime, and,
     (ii) each of the 4-digit numbers are permutations of one another.
 
-    There are no arithmetic sequences made up of three 1-, 2-, or 3-digit primes, 
-    exhibiting this property, but there is one other 4-digit increasing sequence.
+    There are no arithmetic sequences made up of three 1-, 2-, or 3-digit
+    primes, exhibiting this property, but there is one other 4-digit increasing
+    sequence.
 
-    What 12-digit number do you form by concatenating the three terms in this sequence?
+    What 12-digit number do you form by concatenating the three terms in this
+    sequence?
     """
+
     ans = []
     primes_list = sorted(set(list_primes(10_000)) - set(list_primes(1_000)))
 
     for number in primes_list:
-        if set(list(str(number))) == set(list(str(number+3330))) == set(list(str(number+6660))):
-            if number+3330 in primes_list and number+6660 in primes_list:
-                ans.append(str(number)+str(number+3300)+str(number+6660))
+        if (
+            set(list(str(number)))
+            == set(list(str(number + 3330)))
+            == set(list(str(number + 6660)))
+        ):
+            if number + 3330 in primes_list and number + 6660 in primes_list:
+                ans.append(str(number) + str(number + 3300) + str(number + 6660))
     # return the second one
     return ans[1]
 
 
 if __name__ == "__main__":
-
-    print(f"Result for Problem 49: {compute()}")
\ No newline at end of file
+    print(f"Result for Problem 49 is {compute()}")