import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import java.util.List;
import java.util.Arrays;
public class Main {
    //Program start

    //Program end

    @Test
public void test1() {
    assertEquals(15, maxSum(Arrays.asList(1,2,3,4,5)));
}
@Test
public void test2() {
    assertEquals(1, maxSum(Arrays.asList(1,1,0,1,1)));
}
@Test
public void test3() {
    assertEquals(3, maxSum(Arrays.asList(1,2,-1,-2,1,0,-1)));
}

}