@louisejean: when you post code on the forums, you need to format it so it will display correctly. (I've edited your post above for you.)
You can highlight your code, then use the
</> button in the editor window, or you can place three backticks ``` (top left key on US/UK keyboards) on a line above your code, and three on a line below your code. I find this approach easier, but unfortunately some European and other keyboards don't have that character.