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

Ex Input:
Problem: the area of a circular field is 17.56 hectares . find the cost of fencing it at the rate of rs . 7 per metre approximately

Ex Output:
10400


Ex Input:
Problem: one night 17 percent of the female officers on a police force were on duty . if 204 police officers were on duty that night and half of these were female officers , how many female officers were on the police force ?

Ex Output:
600


Ex Input:
Problem: 1399 x 1399

Ex Output:

1957201