The task is to generate the correct answer for a given math problem.

Input: Consider Input: Problem: paul ' s income is 40 % less than rex ' s income , quentin ' s income is 20 % less than paul ' s income , and sam ' s income is 40 % less than paul ' s income . if rex gave 60 % of his income to sam and 40 % of his income to quentin , quentin ' s new income would be what fraction of sam ' s new income ?

Output: 11 / 12


Input: Consider Input: Problem: meena wrote all the numbers from 1 to 29,999 inclusive . how many digits did she write in total ?

Output: 138,889


Input: Consider Input: Problem: if 80 percent of a class answered the first question on a certain test correctly , 55 percent answered the second question on the test correctly , and 20 percent answered neither of the questions correctly , what percent answered both correctly ?


Output: 55