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marți, 30 noiembrie 2021

Kazakhstan finals, 2021, https://artofproblemsolving.com/community/c4t48f4h2727784_ltmka_square_abcd_ltbamltckm30o_2nd_matol_202122_kazakhstan_finals_73


 

Un comentariu:

https://artofproblemsolving.com/community/c6h616123p3670325

 This is my synthetic proof to the subject problem: