import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
    	int b = sc.nextInt();

    	if (b == 1) {
            System.out.println(0);
    		return;
    		//1個だけなら、0返す。
        }
        int res = 1;
        int total = a;
        while (total < b) {
          //個数分ループ
          total += (a - 1);
          //繋げようタブを引き
            res += 1;
        }
        System.out.println(res);
    }

}

/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