User contributions
- 20:18, 6 September 2021 (diff | hist) . . (-10) . . 1959 IMO Problems/Problem 2
- 19:35, 6 September 2021 (diff | hist) . . (+1) . . 1959 IMO Problems/Problem 2
- 19:35, 6 September 2021 (diff | hist) . . (+18) . . 1959 IMO Problems/Problem 2
- 19:33, 6 September 2021 (diff | hist) . . (+843) . . 1959 IMO Problems/Problem 2