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- 22:34, 9 July 2018 (diff | hist) . . (+244) . . N 2018 IMO Problems/Problem 2 (Created page with "Find all numbers <math>n \ge 3</math> for which there exists real numbers <math>a_1, a_2, ..., a_{n+2}</math> satisfying <math>a_{n+1} = a_1, a_{n+2} = a_2</math> and <cmath>...")
