You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Input: Consider Input: The tallest player on the basketball team is 77.75 inches tall . This is 9.5 inches taller than the shortest player . How tall is the shortest player , in inches ?

Output: 68.25

Input: Consider Input: Robin had 18 pieces of gum . Her brother gave her some more pieces . Now Robin has 44 pieces in all . How many pieces of gum did Robin 's brother give her ?

Output: 26

Input: Consider Input: Christian and the junior ranger brought a bag of 140 nails as they visited every station assigned to the junior ranger . If they left exactly 7 nails in every station they visited , how many stations did Joline and the junior ranger visit ?
Output: 20