#include <iostream>
using namespace std;

int main()
{
    char str1[100];
    char str2[100];
    int k;
    cin.get(str1,100);
    cin>>k;
    char* p1=str1;
    char* p2=str2;
    p1=p1+k-1;
    while(*p1!='\0')
    {
        *p2=*p1;
        p1++;
        p2++;
    }
    *p2='\0';
    cout<<str2<<endl;
}