1 import java.util.Scanner;
2
3 public class Solution
4 {
5 public static void main(String[] args)
6 {
7 Scanner input = new Scanner(System.in);
8
9 int n = input.nextInt();
10 int limit = input.nextInt();
11
12 int[][] borrowers = new int[n][n];
13
14 for(int i = 0; i < n; i++)
15 {
16 borrowers[i][i] = input.nextInt();
17 int volume = input.nextInt();
18 int[] temp = new int[volume * 2];
19 for(int j = 0; j < temp.length; j++)
20 temp[j] = input.nextInt();
21 for(int j = 1; j < temp.length; j += 2)
22 borrowers[i][temp[j - 1]] = temp[j];
23 }
24
25 boolean existChange = false;
26 while(true)
27 {
28 existChange = false;
29 for(int i = 0; i < n; i++)
30 {
31 int sum = 0;
32 for(int j = 0; j < n; j++)
33 sum += borrowers[i][j];
34 if(sum < limit)
35 {
36 System.out.println("Unsafe Bank -- " + i);
37 existChange = true;
38 for(int j = 0; j < n; j++)
39 if(j != i)
40 borrowers[j][i] = 0;
41 }
42 }
43 if(existChange == false)
44 break;
45 }
46 }
47 }
