#include "bits/stdc++.h"
using namespace std;
#define int long long
//#define endl '\n'
int mod=1e9+7;
int mod2=998244353;
const int INF=1e9;

signed main(){
  int n;
  cin>>n;
  vector<int> a;
  vector<int> G[2*100001];
  for(int i=0;i<n;i++){
    int b;
    cin>>b;
    //隣接して同じ数なら削除
    if(i==0||b!=a[a.size()-1]){
      a.push_back(b);
      G[b].push_back(a.size()-1);
    }
  }
  vector<int> dp(a.size()+1,0);
  vector<int> bp(2*1e5+1,0);
  dp[0]=1;
  for(int i=0;i<a.size();i++){
    (dp[i+1]+=dp[i])%=mod;
    if(G[a[i]].size()-1>bp[a[i]]){
      (dp[G[a[i]][bp[a[i]]+1]]+=dp[i])%=mod;
      bp[a[i]]++;
    }
  }
  cout<<dp[a.size()]<<endl;
}

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