#include <bits/stdc++.h>
using namespace std;
int n;
int a[1000];
int main() {
freopen("tinhtong.inp","r",stdin);
freopen("tinhtong.out","w",stdout);
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i];
int s=0;
for (int i=1;i<=n;i++)
{
if (a[i]%10 > (a[i]%100)/10) s+=a[i];
}
cout<<s;
return 0;
}
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