V1.1

Code of day 2 and 3
V1.2

Day 4
Revert "V1.2"

This reverts commit 14363006ad2b62b1ddcbd4c06b1e317ddc22a15f.
V 1.3

Commit reverted
Merge pull request #1 from Tonymem/master

Pullreq Jan 10
This is merged and named V2.0