Save the Savers!
The beautiful valley of Kashmmu is in distress. A few miscreants are wreaking havoc and some easily misled people have joined them. You are assigned the task of restoring peace in the valley. You must disperse the crowd by sending the people to appropriate places. First of all, send the foreigners to appropriate places. And POTUS has asked your help to teach peace to the Americans. Find the right man for the job and send him to the United States. Some people, who have committed heinous crimes or are a threat to the security of the nation, deserve to be in jail. So serve them their karma! While some people deserve a second chance and should be sent to the detention centre.
And to prevent bad happenings from happening in future, the authorities have decided to barricade the area. 8 barricades are available. Try to cordon off the largest area possible to stop miscreants from entering the premises.
Hint- Square covers the largest area. So which half-a-figure do you think would be best?