#include<bits/stdc++.h>
using namespace std;
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define int long long
typedef long long ll;
#define F first
#define S second
#define pb emplace_back
int a[300005];
signed main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    for(int i=0;i<n;i++) cin>>a[i];
    sort(a,a+n);
    if(n==2) cout<<a[0]+a[1]%a[0]<<'\n';
    else
    {
        int ans=a[n-1]%a[0];
        for(int i=0;i<n-1;i++) ans+=a[i];
        int sum=0,mn=1e18;
        for(int i=0;i<n;i++) sum+=a[i];
        for(int i=n-2;i>=1;i--)
        {
            mn=min(mn,a[i]-a[i]%a[0]);
            ans=max(ans,sum-mn-(a[n-1]-a[n-1]%a[i]));
        }

        cout<<ans<<'\n';

    }



}