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Because of the lack of police officers in the City of Dorson, the concert tomorrow can only be held at one of two venues: Walls Studio or Maxi Hall. Due to the open roof in Maxi Hall, the event cannot be held there if there is rain.

Ida: “It is raining tomorrow; therefore, the concert must be held at Walls Studio.”

Ruslan: “If there are enough police officers, Dorson cannot host the concert in any other venue either than Walls Studio.”

If the information in the box is true, whose reasoning is correct?