--- a/day1/exercise/arm.py	Sun Jun 27 20:23:10 2010 -0500
+++ b/day1/exercise/arm.py	Sun Jun 27 22:05:22 2010 -0500
@@ -3,8 +3,8 @@
     cubes.append(i ** 3)
 
 for i in range(100, 1000):
-    a = i % 10
-    b = (i / 10) % 10
-    c = (i / 100) % 10
-    if i == cubes[a] + cubes[b] + cubes[c]:
+    ones = i % 10
+    tens = (i / 10) % 10
+    hundreds = (i / 100) % 10
+    if i == cubes[ones] + cubes[tens] + cubes[hundreds]:
         print "Armstrong Number: ", i

--- a/day1/exercise/collatz.py	Sun Jun 27 20:23:10 2010 -0500
+++ b/day1/exercise/collatz.py	Sun Jun 27 22:05:22 2010 -0500
@@ -1,8 +1,8 @@
-a = int( raw_input( 'Enter number: ') )
-while a != 4:
-    print a,
-    if a % 2 == 1:
-        a = a * 3 + 1
+num = int( raw_input( 'Enter number: ') )
+while num != 4:
+    print num,
+    if num % 2 == 1:
+        num = num * 3 + 1
     else:
-        a /= 2
+        num /= 2
 print 4, 2, 1

--- a/day1/exercise/datestring.py	Sun Jun 27 20:23:10 2010 -0500
+++ b/day1/exercise/datestring.py	Sun Jun 27 22:05:22 2010 -0500
@@ -1,14 +1,24 @@
-month2mm = { 'JAN': 1, 'FEB': 2, 'MAR': 3, 'APR': 4, 'MAY': 5, 'JUN': 6,
-'JUL': 7, 'AUG': 8, 'SEP': 9, 'OCT': 10, 'NOV': 11, 'DEC': 12 }
+month2mm = {'JAN': 1, 
+            'FEB': 2, 
+            'MAR': 3, 
+            'APR': 4, 
+            'MAY': 5, 
+            'JUN': 6,
+            'JUL': 7, 
+            'AUG': 8, 
+            'SEP': 9, 
+            'OCT': 10, 
+            'NOV': 11, 
+            'DEC': 12 }
 
 COMMA = ','
 SPACE = ' '
 date_str = raw_input('Enter a date string? ')
-date_str = date_str.replace( COMMA, SPACE)
-d, m, y = date_str.split()
-dd = int( d )
-mon = m[:3].upper()
+date_str = date_str.replace(COMMA, SPACE)
+day, month, year = date_str.split()
+dd = int(day)
+mon = month[:3].upper()
 mm = month2mm[mon]
-yyyy = int( y )
+yyyy = int(year)
 
-print dd,mm, yyyy
+print dd, mm, yyyy