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We propose an ultra deep exposure (2 million sec) of the Center of the Milky Way. The data of such ultra deep observation of the Galactic Center will undoubtedly be very rich and this is the most efficient way of using precious INTEGRAL observing time. These data will be a valuable addition to and a continuation of the INTEGRAL Core Program and when combined together they would become a decisive dataset for studies of high energy phenomena in this region. Should this proposal be accepted the data will be made vailable during the proprietary period to scientists of major astrophysical institutions of Russia. [truncated! Please see actual data for full text]