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diff --git a/challenge-243/ianrifkin/python/ch-2.py b/challenge-243/ianrifkin/python/ch-2.py
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+#!/usr/local/bin/python3
+import sys, argparse
+import math
+
+# Challenge 243, Task 2: Floor Sum
+
+# You are given an array of positive integers (>=1).
+# Write a script to return the sum of floor(nums[i] / nums[j]) where 0 <= i,j < nums.length. The floor() function returns the integer part of the division.
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-243/#TASK2 for more information on this challenge
+
+# else set default values from example if no cmd line input
+
+def main(argv):
+    argParser = argparse.ArgumentParser()
+    argParser.add_argument("-n", "--nums", nargs='+', type=int, help="space seperated list of positive integers e.g. -n 10 30 4 5")
+    args = argParser.parse_args()
+
+    if args.nums:
+        nums = args.nums
+        print( sum_floors(nums) )
+    else:
+        #Example 1
+        nums = (2, 5, 9)
+        print( sum_floors(nums) )     
+        #Example 2
+        nums = (7, 7, 7, 7, 7, 7, 7)
+        print( sum_floors(nums) )        
+        
+def sum_floors(nums):
+    sum_of_floors = 0
+    for i, inum in enumerate(nums):
+        for j, jnum in enumerate(nums):
+            sum_of_floors = sum_of_floors + math.floor(inum / jnum)
+    return sum_of_floors
+                    
+        
+if __name__ == "__main__":
+   main(sys.argv[1:])