using System;

public class Program

{

    public static void Main()

    {

int num=int.Parse(Console.ReadLine());

int l=int.Parse(Console.ReadLine());

Console.WriteLine(getrighthalf(num,l));     

}   

public static int getrighthalf(int num,int l)

{

int p=1,temp=0,c=0;     

while(num!=0)

{

if(!(c*2==l))

{

c++;

temp=(num%10)*p;

p*=10;  

num/=10;    

}

}   

return temp;

​

}

}