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diff --git a/challenge-100/paulo-custodio/python/ch-1.py b/challenge-100/paulo-custodio/python/ch-1.py
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+#!/usr/bin/env python
+
+# Challenge 100
+# 
+# TASK #1 > Fun Time
+# Submitted by: Mohammad S Anwar
+# You are given a time (12 hour / 24 hour).
+#
+# Write a script to convert the given time from 12 hour format to 24 hour format
+# and vice versa.
+#
+# Ideally we expect a one-liner.
+#
+# Example 1:
+# Input: 05:15 pm or 05:15pm
+# Output: 17:15
+# Example 2:
+# Input: 19:15
+# Output: 07:15 pm or 07:15pm
+
+import re;
+import sys;
+import datetime;
+
+if re.search(r'am|pm', sys.argv[1], re.I):
+    t = datetime.datetime.strptime(sys.argv[1], "%I:%M%p")
+    print(t.strftime("%H:%M"))
+else:
+    t = datetime.datetime.strptime(sys.argv[1], "%H:%M")
+    print(t.strftime("%I:%M%p").lower())
diff --git a/challenge-100/paulo-custodio/python/ch-2.py b/challenge-100/paulo-custodio/python/ch-2.py
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+#!/usr/bin/env python
+
+# Challenge 100
+# 
+# TASK #2 > Triangle Sum
+# Submitted by: Mohammad S Anwar
+# You are given triangle array.
+#
+# Write a script to find the minimum path sum from top to bottom.
+#
+# When you are on index i on the current row then you may move to either
+# index i or index i + 1 on the next row.
+#
+# Example 1:
+# Input: Triangle = [ [1], [2,4], [6,4,9], [5,1,7,2] ]
+# Output: 8
+#
+# Explanation: The given triangle
+#
+#             1
+#            2 4
+#           6 4 9
+#          5 1 7 2
+#
+# The minimum path sum from top to bottom:  1 + 2 + 4 + 1 = 8
+#
+#              [1]
+#            [2]  4
+#            6 [4] 9
+#           5 [1] 7 2
+# Example 2:
+# Input: Triangle = [ [3], [3,1], [5,2,3], [4,3,1,3] ]
+# Output: 7
+#
+# Explanation: The given triangle
+#
+#             3
+#            3 1
+#           5 2 3
+#          4 3 1 3
+#
+# The minimum path sum from top to bottom: 3 + 1 + 2 + 1 = 7
+#
+#              [3]
+#             3  [1]
+#            5 [2] 3
+#           4 3 [1] 3
+
+import sys;
+
+triangle = []
+
+def add_row(row, items):
+    triangle.append(items)
+
+def parse(args):
+    for i in range(0, len(args)):
+        items = [int(x) for x in args[i].split(",")]
+        add_row(i, items)
+
+def min_sum():
+    def min_sum_1(sum, row, col):
+        sum += triangle[row][col]
+        if row+1 == len(triangle):
+            return sum
+        else:
+            sum1 = min_sum_1(sum, row+1, col)
+            sum2 = min_sum_1(sum, row+1, col+1)
+            return min(sum1, sum2)
+    return min_sum_1(0, 0, 0)
+
+parse(sys.argv[1:])
+print(min_sum())
+
+
+