#include <bits/stdc++.h>
using namespace std;
const long long MOD = 1000000007;
int main(){
  int N;
  cin >> N;
  long long L, R;
  cin >> L >> R;
  vector<long long> F(2, 1);
  while (1){
    long long next = F[F.size() - 2] + F[F.size() - 1];
    if (next <= R){
      F.push_back(next);
    } else {
      break;
    }
  }
  set<string> ng;
  for (long long x : F){
    if (L <= x && x <= R){
      ng.insert(to_string(x));
    }
  }
  vector<string> prf;
  for (string S : ng){
    int len = S.size();
    for (int j = 0; j <= len; j++){
      prf.push_back(S.substr(0, j));
    }
  }
  sort(prf.begin(), prf.end());
  prf.erase(unique(prf.begin(), prf.end()), prf.end());
  int V = prf.size();
  map<string, int> id;
  for (int i = 0; i < V; i++){
    id[prf[i]] = i;
  }
  vector<vector<int>> next(V, vector<int>(10, -1));
  for (int i = 0; i < V; i++){
    for (int j = 0; j <= 9; j++){
      string S = prf[i];
      S += '0' + j;
      int len = S.size();
      bool ok = true;
      for (int k = 0; k <= len; k++){
        string T = S.substr(k);
        if (ng.count(T)){
          ok = false;
        }
      }
      if (ok){
        for (int k = 0; k <= len; k++){
          string T = S.substr(k);
          if (id.count(T)){
            next[i][j] = id[T];
            break;
          }
        }
      }
    }
  }
  vector<vector<long long>> dp(N + 1, vector<long long>(V, 0));
  dp[0][0] = 1;
  for (int i = 0; i < N; i++){
    for (int j = 0; j < V; j++){
      for (int k = 0; k <= 9; k++){
        if (next[j][k] != -1){
          if (!(i == 0 && k == 0)){
            dp[i + 1][next[j][k]] += dp[i][j];
            dp[i + 1][next[j][k]] %= MOD;
          }
        }
      }
    }
  }
  long long ans = 0;
  for (int i = 1; i <= N; i++){
    for (int j = 0; j < V; j++){
      ans += dp[i][j];
      ans %= MOD;
    }
  }
  cout << ans << endl;
}