vector jimOrders(vector> orders) { vector> sum; int i = 1;

for(auto it : orders){
    int order = it[0];
    int prep = it[1];
    sum.push_back({order + prep, i});
    i++;
}
sort(sum.begin(),sum.end());

vector<int> ans;

for(auto it : sum){
    ans.push_back(it.second);
}

return ans;

}