#include using namespace std; typedef long long ll; #define F first #define S second #define pii pair #define eb emplace_back #define all(v) v.begin(), v.end() #define rep(i, n) for (int i = 0; i < n; ++i) #define rep3(i, l, n) for (int i = l; i < n; ++i) #define chmax(a, b) a = max(a, b) #define chmin(a, b) a = min(a, b) #define out(a) cout << a << endl #define SZ(v) (int)v.size() #define inf (int)(1e9+7) int main() { int d; cin >> d; string s; rep3(i, 1, 100) { s += to_string(i); } out(s[d - 1]); }