ant_on_the_boundary/java_tests/Main.java

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

}