try
{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("input 3 number>");
String line = in.readLine();
int x = Integer.parseInt(line);
line = in.readLine();
int y = Integer.parseInt(line);
line = in.readLine();
int z = Integer.parseInt(line);
System.out.println(x+y+z);
}
catch(Exception ee)
{}