We're glad to invite you to participate in HACKARZ FOOLS CONTEST #3, which will take place on Nov/28/2024 17:35 (Moscow time). You will be given 10 problems and 2 hours to solve them. The problems ARE NOT SORTED ACCORDING TO DIFFICULTY so please read all problems.

The problems were authored and prepared by: Lord_Baraa, ahmedfouadnew, MN3M, enfp, Habiba_09, and our beloved coordinator Ahmadsm2005.

We would like to thank yahia, Youssef_Elwazzan, d19n, and Metal_Sonic for testing.

We would like to thank our media team for their beautiful work: enfp, Elaine151, and hAneeNn.

We hope you'll like the problems and enjoy the contest!

Join group: https://codeforces.net/group/zJtqriSgdw/contests .

IMPORTANT NOTES:

• Solving some problems may depend on reading others.
• Searching for anything is allowed during the contest, but using AI like ChatGPT is not allowed.