import java.util.Scanner;

	public class Main {

		public static void main(String[] args) {
			// AtCoder_C
			Scanner sc = new Scanner(System.in);
			int ans = 0;

			int A = sc.nextInt();
			int B = sc.nextInt();

			while((A-1)*(ans-1)+A < B) {
				ans++;
			}

			System.out.println(ans);

    	    // Scannerクラスのインスタンスをクローズ
    		sc.close();
    	}
    }
/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