 Complete the following phrase:  From 1976 to 1987, Tkachenko played on the senior mens Soviet Union national basketball team, participating in many FIBA EuroBasket and FIBA World Cup competitions. With the Soviet national team, he won numerous medals, including: two bronze medals at the 1976 Summer Olympic Games and at the 1980 Summer Olympic Games, the gold medal at the 1982 FIBA World Championship also silver medals at the 1978 FIBA World Championship and the 