#include <iostream>
#include <string.h>

using namespace std;

int main() {
	string a;
	cin >> a;
	int d;
	cin >> d;
	int length;
	length = a.length();
	char temp;
	while(1) {
		if(d <= length) {
			cout << a[d - 1];
			return 0;
		}
		else {
			temp = a[length-1];
			a += temp;
			a += a.substr(0, length-1);
			length *= 2;
		}
	}
}