import java.util.Scanner;

class Nho{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        
        if( b % 2 == 1){
            b++;
        }else{}
        int answer = b / a;
        
       System.out.println(answer + "¥n");
    }
}