@@ -0,0 +1,189 @@
+LIMIT = 1000%0A%0Adef valid(n):%0A   return not ((x%255) and (x%253))%0A%0Adef problem_1(u):%0A    return sum((n for n in xrange(1, u) if valid(n)))%0A%0Aif __name__ == '__main__':%0A    print(problem_1(LIMIT))%0A

Create problem_1.py