import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		System.out.println(power_socket(scanner.nextInt(), scanner.nextInt()));
		scanner.close();
	}
	
	public static int power_socket(int a, int b) {
		int taps = 0;
		int sockets = 1;
		while(sockets < b) {
			sockets += a - 1;
			taps++;
		}
		return taps;
	}

}
/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