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

Input: Consider Input: Problem: a cistern 12 m long and 14 m wide contains water up to a depth of 1 m 25 cm . the total area of the wet surface is :

Output: 233 m 


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: how much time will a train of length 400 m moving at a speed of 72 kmph take to cross another train of length 300 m , moving at 36 kmph in the same direction ?


Output: 70 sec