import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] inputStr = scanner.nextLine().split(" ");
        int a = Integer.valueOf(inputStr[0]);
        int b = Integer.valueOf(inputStr[1]);
        int ans = 0;
        int totalTapCnt = 1;

        while(totalTapCnt < b) {
            totalTapCnt += (a - 1);
            ans++;
        }

        System.out.println(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