Using a variable in an input prompt

I am trying to use the iterator (ii) of my for loop as a string in my input prompt. The code is shown below

for ii = 1:n
  x = input('What is the orientation of molecule ' num2str(ii) 'in the x-direction?');
end

but this does not work. Any suggestions?

[lsutiger1]

Thank you to all who replied! Much appreciated!!

Answer 1

[Walter Roberson]

    x = input(['What is the orientation of molecule ' num2str(ii) 'in the x-direction?']);

[lsutiger1]

Thank you!

Answer 2

[Wanbin Song]

Input argument of 'input' function should be a text.

Your code shows that your input arguments of 'input' function consists of three string.

Just combine them as below.

for ii = 1:n
     x = input(['What is the orientation of molecule ' num2str(ii) 'in the x-direction?']);
end

Then it will work.

[lsutiger1]

Thank you!