https://math.stackexchange.com/questions/1749853/if-there-ar...
https://stackoverflow.com/questions/14415881/how-to-pair-soc...
[1] https://stackoverflow.com/questions/1732348/regex-match-open...
"What is the best comment in source code you have ever encountered?" https://stackoverflow.com/questions/184618/what-is-the-best-...
Shanghai 1927.
I'm sure there is a .Net answer as well similar to this.
https://stackoverflow.com/questions/8318911/why-does-html-th...