<http://codewindow.in/unique-pair-whose-sum-of-digits-are-same-infytq-2019-solve/#richSnippet>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://codewindow.in/unique-pair-whose-sum-of-digits-are-same-infytq-2019-solve/>