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**I am the writer of the problems.**↵
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This blog is invitation to [**SpecialForces**](https://mirror.codeforces.com/contestInvitation/11d601e0a2adeb63ff035570b0397db45dc33917)↵
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Previous contest: [**Mathforces**](https://mirror.codeforces.com/contestInvitation/4347183672d8f7d82545e50c3ef58773b2f59511)↵
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You will have **5 problems** in **120 minutes**.↵
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Please **register** and **join** the contest.↵
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I bet you will **like** the contest.↵
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**Best of luck** for everyone!