import java.util.*;
public class Main{
  public static void main(String[]args){
      Scanner sc = new Scanner(System.in);

      int a = sc.nextInt();
      int b = sc.nextInt();
      int sum = a;
      int count = 1;

      if (b==1) {
        System.out.println(0);
        System.exit(0);
      }
      if (a==b) {
        System.out.println(1);
        System.exit(0);
      }

      for (int i = 1;sum<b ;i++ ) {
        sum = sum + a -1;
        count++;
      }
      System.out.println(count);
}
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz