Какова процедура и место регистрации брака

What is the procedure and place of registration of marriage in the following cases:
1. The bride lives in Moscow, the groom in the city of Novosibirsk. They met and decided to register a marriage in Revda.
2. The bride is serving a sentence in a colony, the groom is in a house of invalids in another city.
3. The bride and groom applied to the registry office at the groom´s place of residence and asked to register the marriage on the day of the appeal, because in two weeks they need to go abroad for a long period of time.

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