Feu un programa que demani 3 valors per l’entrada estàndard
i n’escrigui la suma per pantalla.
Entrada
3 enters.
Sortida
La suma dels 3 enters.
About statements
The official statement of a problem is always the one
in the PDF document. The HTML version of the statement
is also given to help you, but may contain some content
that is not well displayed. In case of doubt, always use the PDF.