#include<bits/stdc++.h>
using namespace std;
#define int long long
const int N=2e5+5;
const int mod=1e9+7; 
int n,dp[N],f[N];
signed main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		int a;
		cin>>a;
		dp[i]=i==1?1:dp[i-1];
		dp[i]+=f[a]==i-1?0:dp[f[a]];
		dp[i]%=mod;
		f[a]=i;
	}
	cout<<dp[n];
	return 0;
}