import java.util.*;
public class Main{

public static void main(String[] args){
Scanner obj=new Scanner(System.in);
int a=obj.nextInt();
int b=obj.nextInt();
int out=1;
int ans=0;

while(out<b){
out--;
out=out+a;
ans++;

}

System.out.println(ans);


}



}
/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