The doors of the jam produced by a company do not open. In order for them to be able to sell their jam, they reward the one who can open the jam. All the people try to open the door of the jam.
2022
1976
1994
2009
2019
2002
2005
2024
2017
2001
1974
2006
1999
2018
1939
2015
2008
