package MyTest;
import java.util.Scanner;
public class test1 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = logic(x);
System.out.println(y);
}
public static int logic(int x) {
int y = 0;
if (x > 0) {
y = x + 3;
} else if (x == 0) {
y = 0;
} else {
y = x * x - 1;
}
return y;
}
}
呐
我才六年级