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(9, minimumSum(Arrays.asList(8,6,1,5,3)));
}
@Test
public void test2() {
    assertEquals(13, minimumSum(Arrays.asList(5,4,8,7,10,2)));
}
@Test
public void test3() {
    assertEquals(-1, minimumSum(Arrays.asList(6,5,4,3,4,5)));
}

}