/* package whatever; // don't place package name! */
 
import java.util.Date;
import java.util.Locale;
import java.text.SimpleDateFormat;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		long timeOfData = 1545151800;
		long timeOfDataL = timeOfData*1000L;
		String humanTimeOfData = new SimpleDateFormat("dd/MM/yyyy", Locale.US).format(new Date(timeOfDataL));
		System.out.println(humanTimeOfData);
	}
}

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