You will be given a definition of a task first, then some input of the task.
You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.

Ezra drew a white line that was 7.6 inches long.Then he drew a blue line that was 3.3 inches long. How much longer was the white line than the blue line?
Output:
4.3