The Sharing Gum is the 195th chapter of the Doraemon manga.
Currently Doraemon and Nobita's peanut snacks were reduced, and Nobita stated that like if feeding an bird. Despite Tamako stated that eating more snacks is unhealthy, but Nobita stated that she basically reducing the spending. Nobita and Doraemon meets Suneo, calling if he want to play together, but he refused. Then Nobita and Doraemon says that they want go to Suneo's house. But Suneo refused again and he stated his mother wants gave him melon and not enough to eat if they come. Doraemon then watch Suneo, who refuses. And he gave Suneo The Sharing Gum. And he then gave Nobita.