倒数第二个不通过，求大佬指导

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int[][] arr = new int[7][2];

        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < 2; j++) {
                arr[i][j] = scanner.nextInt();
            }
        }

        for (int i = 0; i < arr.length; i++) {
            if (arr[i][0]+arr[i][1]>8){
                System.out.println(i+1);
                break;
            }
            if (i == 6) System.out.println(0);
        }
    }
    
}