23 users have solved this problem:

programmer123, pony_joe1, bear1212, gaulle, yixiu, awu, ngrace, Salamander, dumpy, lukamosiashvili, stupidguy13, lion, KarL06, warren_huang, finehaveanormalusername, Double_Slash, davinformatics, Vedang, SirLemonMeringue, Nonoze, ja_kingy, belgianbot, ludissey