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+# Perl Weekly Challenge 072
+
+Solution by Simon Green.
+
+No solutions for last week as I was moving interstate. I'm back on board this week :)
+
+## TASK #1 › Trailing Zeroes
+
+When you think about it, a trailing zero is a product of 10, which is 2 × 5. Forgetting about the twos (since every second number is even), the five occurs every 5 numbers. Thus the factorial from 1 to 4 will contain no trailing zeros, 5-9 one trailing zero, 10-14 three trailing zeros, and so on. Once you reach 25, it gets a little more complicated as 25 is 5 × 5. Anyway, I digress from the actual task.
+
+For this task, I take the input, calculate the factorial value, I then use a regular expression to find the trailing zeros (if any), and then display it.
+
+### Examples
+
+    » ./ch-1.pl 10
+    2
+
+    » ./ch-1.pl 7
+    1
+
+    » ./ch-1.pl 4
+    0
+
+## TASK 2 › Lines Range
+
+This tasks was relatively simple. Read the file, skip the lines < `$A` and exit the loop once line `$B` is reached (or the end of file).
+
+## Example
+
+    » ./ch-2.pl input.txt 4 12
+    L4
+    L5
+    L6
+    L7
+    L8
+    L9
+    L10
+    L11
+    L12
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