#include <iostream>
#include <algorithm>
using namespace std;
int main() {
int n, arr[7], res=0;
cin>>n;
while(n--){
int score=0;
for(int i=0;i<7;i++){
cin>>arr[i];
}
score+=max(arr[0], arr[1]);
sort(arr+2,arr+7);
score+=arr[5]+arr[6];
res=max(res,score);
}
cout<<res;
return 0;
}
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