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

public class Main{
	public static void main (String[] args) {
		Scanner cin = new Scanner(System.in);
		int a = cin.nextInt();
		int b = cin.nextInt();
		System.out.println((int)Math.ceil((b-1)/(a-1.0)));
	}
}
/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