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Boris Kolmogorov was born on 1990-01-12.
Andrey Kolmogorov was born on 1903-04-25.
Andrey Kolmogorov died on 1987-10-20.
Andrey Nikolayevich Kolmogorov was born on April 25, 1903.
Andrey Nikolayevich Kolmogorov died on October 20, 1987 at the age of 84.