import java.util.*;

public class Main
{
  public static void main(String args[])
  {
    Scanner scan = new Scanner(System.in);
	int a = scan.nextInt();
	int b = scan.nextInt();
	int count=0,non=1;
	while((a>0)&&(b>0))
	{
		if(non>=b)
		{
			break;
		}
		else
		{
			non=non-1+a;
			count++;
		}
	}
	System.out.println(count);
  }
}
		
/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