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admin

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active 4 months ago
Each problem that I solved became a rule which served afterwards to solve other problems. (Rene Descartes, Discours de la Methode) View

Member's groups

  • 1
    active 4 months, 4 weeks ago

    A group for all boxing players

    Public Group
  • 1
    active 4 months, 4 weeks ago

    A group for all tennis players

    Public Group
  • 1
    active 4 months, 4 weeks ago

    A group for all basketball players

    Public Group
  • 1
    active 4 months, 4 weeks ago

    A group for all football players

    Public Group