#include <bits/stdc++.h>
using namespace std;
inline long long read() {
  register long long s = 0, f = 0;
  register char ch = getchar();
  while (!isdigit(ch)) f |= (ch == '-'), ch = getchar();
  while (isdigit(ch)) s = (s << 1) + (s << 3) + (ch ^ 48), ch = getchar();
  return f ? -s : s;
}
signed main() {
  string s = "";
  long long k = read();
  for (register long long i = 1; s.size() < k; i = -~i) s += to_string(i);
  cout << s[k - 1] << endl;
  return 0;
}
