import java.util.Scanner;
public class Decide {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("請輸入您想輸入的數字:");
boolean falg = false;
int num = 0;
for (int i = 1; i < 10; i++) {
int a = scanner.nextInt();
if (a < 0) {
falg = true;
num = i;
}
}
if (falg) {
System.out.println("您輸入的數中出現過負數!"+"是在第"+num+"次出現");
}else {
System.out.println("您輸入的數中沒有出現過負數");
}
}
}