**REASON**↵
If you see a'$'$ sign is printing unexpectedly in questions of Codeforces , this is because of Codeforces uses the Mathjax library to format mathematical equations, and if you view network traffic($) on your browser, you will see that when trying to get the Mathjax library it is not getting anything back .↵
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**SOLUTION-1**↵
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You can solve it by opening : ↵
https://cdn-mathjax.codeforces.com/MathJax.js?config=TeX-AMS_HTML-full ↵
Keeping the tab open next to your Codeforces account and refresh your page.↵
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**SOLUTION-2**↵
You can use Firefox browser to overcome it.
If you see a
↵
**SOLUTION-1**↵
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You can solve it by opening : ↵
https://cdn-mathjax.codeforces.com/MathJax.js?config=TeX-AMS_HTML-full ↵
Keeping the tab open next to your Codeforces account and refresh your page.↵
↵
**SOLUTION-2**↵
You can use Firefox browser to overcome it.