import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int A, B;
		A = reader.nextInt();
		B = reader.nextInt();
		int i=1;
		if(B==1) {
			System.out.println(0);
		}
		else {
			while((A*i)-(i-1) < B) {
				++i;
			}
			System.out.println(i);
		}
		
		

	}

}

/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