#include <stdio.h>
#include <string.h>

int main() {

    char str[30] = { 0 };
    gets(str);

    int m;
    scanf("%d",&m);

    // write your code here......
    char *p=str,shuchu[30];
    p=p+m-1;
    
    strcpy(shuchu, p);

    puts(shuchu);

    return 0;
}