Y by NewAlbionAcademy, airplanes1, Neversmile123, bryanbr2, Yousefi, sanabhai, HMoghaddas, dantx5, Jerry37284, Wizard_32, fjm30, Functional_equation, Math-wiz, Adventure10, Mango247, and 8 other users
Problem 85 was one of IRAN TST 2011 problems.
Summer is a great time to explore cool problems to keep your skills sharp! Schedule a class today!
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