import java.util.*;

public class Main {
	final static int MOD = 1000000007;
	
	public static void main(String[] args) {
		MyScanner in = new MyScanner();
		int a = in.nextInt();
		int b = in.nextInt();
		
		int tapp = 1;
		int count = 0;
		
		while (tapp < b) {
			tapp--;
			tapp += a;
			count++;
		}
		
		System.out.println(count);
		
	}
	
	static class MyScanner {
		static Scanner sc = new Scanner(System.in);
		
		String next() {
			return sc.next();
		}
		
		String nextLine() {
			return sc.nextLine();
		}
		
		int nextInt() {
			return Integer.parseInt(sc.next());
		}
		
		double nextDouble() {
			return Double.parseDouble(next());
		}
		
		long nextLong() {
			return Long.parseLong(next());
		}
		
		int[] nextIntArray(int n) {
			int[] array = new int[n];
			for (int i = 0; i < n; i++) {
				array[i] = nextInt();
			}
			return array;
		}
		
		double[] nextDoubleArray(int n) {
			double[] array = new double[n];
			for (int i = 0; i < n; i++) {
				array[i] = nextDouble();
			}
			return array;
		}
		
		long[] nextLongArray(int n) {
			long[] array = new long[n];
			for (int i = 0; i < n; i++) {
				array[i] = nextLong();
			}
			return array;
		}
		
		String[] nextLineArray(int n) {
			String[] array = new String[n];
			for (int i = 0; i < n; i++) {
				array[i] = nextLine();
			}
			return array;
		}
		
		int[][] nextIntMatrix(int n, int m) {
			int[][] matrix = new int[n][m];
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					matrix[i][j] = nextInt();
				}
			}
			return matrix;
		}
		
		double[][] nextDoubleMatrix(int n, int m) {
			double[][] matrix = new double[n][m];
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					matrix[i][j] = nextDouble();
				}
			}
			return matrix;
		}
		
		long[][] nextLongMatrix(int n, int m) {
			long[][] matrix = new long[n][m];
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					matrix[i][j] = nextLong();
				}
			}
			return matrix;
		}
	}
}
/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