#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll MOD = 1000000007;
const ll INF = MOD * MOD;
const int inf = (1 << 29);
int main() {
  int N, K, S;
  cin >> N >> K >> S;
  for (int i = 0; i < N; i++) {
    if (i < K)
      cout << S;
    else
      cout << 0;
  }
  cout << endl;
  return 0;
}
