import java.util.*;

public class Main {
	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		int ans = 1;
		int a = sc.nextInt();
		int b = sc.nextInt();
		
		if(b == 1) {
			System.out.print(0);
		}
		else {
			while(true) {
				if(((a * ans) - (ans - 1)) >= b) {
					break;
				}
				ans++;
			}
			System.out.print(ans);
		}
	}
}
/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