import java.lang.management.ManagementFactory;
import java.util.Scanner;
public class Sum {
    public static void main(String[] args) {
        if (!System.getProperty("java.version").equals("25.0.4.1"))
            throw new IllegalStateException("Java 25.0.4.1 is required");
        var vmArgs = ManagementFactory.getRuntimeMXBean().getInputArguments();
        for (String flag : new String[]{"-Dfile.encoding=UTF-8", "-XX:+UseSerialGC", "-Xss64m", "-XX:TieredStopAtLevel=1", "-XX:ActiveProcessorCount=2", "-Xms2048m", "-Xmx2048m"})
            if (!vmArgs.contains(flag)) throw new IllegalStateException("Missing " + flag);
        System.out.println("Java " + System.getProperty("java.version"));
        System.out.println("VM: " + vmArgs);
        System.out.print("Input two integers: ");
        Scanner in = new Scanner(System.in);
        System.out.println("SUM = " + (in.nextLong() + in.nextLong()));
    }
}