scanf is a c function that takes a formatted imput from stand inpt (usually this is keyboard)
you would actually need a 2nd parenthesis for this to be a valid function call. (one opening after scanf("%d",variable); <like that, additionally you need to direct to a variable for the value to be stored in memory, and the simi colon i've added to close the function.
not sure why they have slashes here "\" but you don't need them. %d implies that the value to be stored is an integer, i.e. a number.
