import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         int A=sc.nextInt();
         int B=sc.nextInt();
         
         int consent=1;
         int tap=0;
         int num=0;
         while(consent<B){
             consent-= 1;
             consent+=A;
             tap+=1;
         }
         
         
         System.out.println(tap);
    }
}

/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