#include <stdio.h>
int main() {
int N,K,b,c,length=0;
scanf("%d %d",&N,&K);
if(N>=0&&(K>=1&&K<=10)){
c=N/10;
do{length=length+1};
while(c!=0)
length=length-1;
if(length>=K){
for(int i=0;i<K;i++){
c=N/10;
b=N%10;
N=c;
}
printf("%d",b);
};
};
return 0;
}