Задача с тремя неизвестными
December 13, 1979
December 13, 1979
April 30, 1986
November 14, 2009
October 25, 1994
January 31, 1994
December 09, 1996
April 10, 2024
May 09, 1999
May 01, 1994
May 07, 2000
November 25, 1995
November 19, 1966
May 13, 1967
January 20, 2003
February 13, 2006