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.
2008
1935
1934
1954
1924
1975
1949
1966
2002
1955
1948
2024
1977
2009
2019
2023
1967
2017