import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int aa = sc.nextInt();
		int bb = sc.nextInt();
		
		int tmp;
		int xx;
		
		bb--;
		
		tmp = (int)bb/(aa-1);
		xx = bb%(aa-1);
		
		if (xx == 0){
			System.out.print(tmp);
		}else{
			System.out.print(tmp+1);
		}
	}
}
/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