From 904d0fc37eefa8657eeadb442df1b3bbe6dec77f Mon Sep 17 00:00:00 2001
From: Mohammad S Anwar <mohammad.anwar@yahoo.com>
Date: Mon, 3 Oct 2022 20:18:29 +0100
Subject: - Added guest contributions by Eric Cheung.

---
 challenge-185/eric-cheung/python/ch-1.py | 14 ++++++++++++++
 challenge-185/eric-cheung/python/ch-2.py | 23 +++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100755 challenge-185/eric-cheung/python/ch-1.py
 create mode 100755 challenge-185/eric-cheung/python/ch-2.py

diff --git a/challenge-185/eric-cheung/python/ch-1.py b/challenge-185/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..bd155daa2e
--- /dev/null
+++ b/challenge-185/eric-cheung/python/ch-1.py
@@ -0,0 +1,14 @@
+
+## Task 1: MAC Address
+## Input Format: hhhh.hhhh.hhhh
+## Output Format: hh:hh:hh:hh:hh:hh
+
+## strInputMACAddr = "1ac2.34f0.b1c2"  ## Example 1
+strInputMACAddr = "abc1.20f1.345a"  ## Example 2
+
+strNoSplit = strInputMACAddr.replace(".", "")
+arrPartSplit = [strNoSplit[nIndx] + strNoSplit[nIndx + 1] for nIndx in range(0, len(strNoSplit), 2)]
+
+strOutputMACAddr = ":".join(arrPartSplit)
+
+print (strOutputMACAddr)
diff --git a/challenge-185/eric-cheung/python/ch-2.py b/challenge-185/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..54f39f2974
--- /dev/null
+++ b/challenge-185/eric-cheung/python/ch-2.py
@@ -0,0 +1,23 @@
+
+## arrListInput = ['ab-cde-123', '123.abc.420', '3abc-0010.xy']  ## Example 1
+arrListInput = ['1234567.a', 'a-1234-bc', 'a.b.c.d.e.f']  ## Example 2
+
+arrListOutput = []
+nMaxToMask = 4
+
+for strLoop in arrListInput:
+
+    strResult = ""
+    nMaskCount = 0
+    
+    for charLoop in strLoop:
+
+        if charLoop.isalnum() and nMaskCount < nMaxToMask:
+            strResult = strResult + "x"
+            nMaskCount = nMaskCount + 1
+        else:
+            strResult = strResult + charLoop
+
+    arrListOutput.append(strResult)
+
+print (arrListOutput)
-- 
cgit