#include <iostream>
#include <cstring>
using namespace std;
int main()
{
setlocale(LC_ALL, "Russian");
char string[100];
cout << "Введите последовательность цифр: ";
cin >> string;
int k;
cout << "nВведите порядковый номер цифры: ";
cin >> k;
if ((k - 1) < 0 || k > strlen(string))
cout << "nНекорректный ввод порядкового номера" << endl << endl;
else
cout << "nk-я цифра последовательности: " << string[k] << endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8Y3N0cmluZz4KCnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpCnsKICAgIHNldGxvY2FsZShMQ19BTEwsICJSdXNzaWFuIik7CiAgICBjaGFyIHN0cmluZ1sxMDBdOwogICAgY291dCA8PCAi0JLQstC10LTQuNGC0LUg0L/QvtGB0LvQtdC00L7QstCw0YLQtdC70YzQvdC+0YHRgtGMINGG0LjRhNGAOiAiOwogICAgY2luID4+IHN0cmluZzsKICAgIGludCBrOwogICAgY291dCA8PCAibtCS0LLQtdC00LjRgtC1INC/0L7RgNGP0LTQutC+0LLRi9C5INC90L7QvNC10YAg0YbQuNGE0YDRizogIjsKICAgIGNpbiA+PiBrOwogICAgaWYgKChrIC0gMSkgPCAwIHx8IGsgPiBzdHJsZW4oc3RyaW5nKSkKICAgICAgICBjb3V0IDw8ICJu0J3QtdC60L7RgNGA0LXQutGC0L3Ri9C5INCy0LLQvtC0INC/0L7RgNGP0LTQutC+0LLQvtCz0L4g0L3QvtC80LXRgNCwIiA8PCBlbmRsIDw8IGVuZGw7CiAgICBlbHNlCiAgICBjb3V0IDw8ICJuay3RjyDRhtC40YTRgNCwINC/0L7RgdC70LXQtNC+0LLQsNGC0LXQu9GM0L3QvtGB0YLQuDogIiA8PCBzdHJpbmdba10gPDwgZW5kbDsKICAgIHJldHVybiAwOwp9