MATLAB: Not providing a fixed input

variable inputs

suppose I write a code:
function c=sum_of_two_numbers(a,b)
a=7;
b=8;
c=a+b;
end
here I have provided values of a and b. I want that whenever I run this code one should be asked to enter values of a and b and then getting C after entering a and b.

Best Answer

function c=sum_of_two_numbers(a,b)
a=input('Enter the 1st Number \n');
b=input('Enter the 2nd Number \n');
c=a+b;
fprintf('The result is %f',c);
end