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

Input: Consider Input: Problem: the number of singles that a baseball player hit increased 10 percent from her first season to her second season , and the number of doubles that she hit in the same time period decreased by 1 percent . if the total number of singles and doubles that she hit increased 3 percent from her first season to her second season , what is the ratio of the number of singles she hit in her first season to the number of doubles she hit in her first season ?

Output: 4 : 7


Input: Consider Input: Problem: the area of a triangle is with base 12 m and height 5 m ?

Output: 30 m 2


Input: Consider Input: Problem: if the sum of 5 consecutive even positive integers is a , then the sum of the next 5 even consecutive integers in terms of a is :


Output: a + 50