import java.util.Scanner;

public class Main {


	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int increase = Integer.parseInt(sc.next()) -1;
		int want = Integer.parseInt(sc.next());
		int total = 1;
		int addCount = 0;

		while (total < want) {
			total += increase;
			addCount++;
		}

		System.out.println(addCount);
	}
}

/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