MATLAB: User input to change the name of an existing variable

change a variable nameuser inputvariables

I am looking to add a number to the end of my variable through user input.
For example, I have:
exp_num = input('What is the experiment number?: ')
I have a variable already labeled 'experiment', but I would like to number each experiment using a user input.
So, if the user entered '11', I would like the variable to be named experiment_11.
Again, if the user entered any number, I want the variable to be named experiment_#.
Thank you!