User:Iraevid13
cursing my name, wishing i stayed, look at how my tears ricochet
AoPS contributions: https://artofproblemsolving.com/wiki/index.php/1987_IMO_Problems/Problem_3#Solution_2 https://artofproblemsolving.com/wiki/index.php/2019_IMO_Problems/Problem_5#Solution_2_.28Strong_Induction_and_Alternative_Case_Division.29