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These operations are not incident to numbers only , but to all manner of things that can be added together , and taken one out of another . At the international press conference in Sarajevo on January 29 , Alexandra Stiglmayer , Head of the OHR Press Office , states that the High Representative fully supports these meetings . These users should be trained and given guidance so that they can adequately follow all policies and procedures . Appointment to any of these positions may be made on a permanent or temporary basis . Equipment for these activities is available to rent , as well as accompanying lessons , if needed .