import java.util.*;
import java.io.*;
import java.lang.*;

class Main{
  public static void main(String[] arrgs){
    Scanner scan = new Scanner(System.in);
    int A = scan.nextInt();
    int B = scan.nextInt();
    int x=1,n=0;
    while(x<B){
      x = x+A-1;
      n++;
    }
    System.out.println(n);
  }
}
      
/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