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

Ex Input:
Problem: the h . c . f of two numbers is 23 and the other two factors of their l . c . m are 14 and 15 . the larger of the two numbers is :

Ex Output:
345

Ex Input:
Problem: a man have 8 t - shirt and some pant . he can dress in 72 ways . then tell me the no . of pant that man have .

Ex Output:
9

Ex Input:
Problem: express a speed of 63 kmph in meters per second ?

Ex Output:
17.5 mps