30 users have solved this problem:

TheEpicCowOfLife, trangim, testcoder, henryho2, he, horiseun, dumpy, lion, ndosh, user, Ghetto, SirLemonMeringue, dorian, programmer123, angus, Matthewwww, Lithanium, dusky, Double_Slash, WenDidIAsk, Supermarine_Spitfire, finehaveanormalusername, chchn2507, junkbot, gongy, review, jenny, Zimo_Yoyo, amanda, newai,