OOP

#include<iostream>
#include<vector>
#define int long long

template<class t>
class Sum{
private:
std::vector<t> arr;
t sum=0;
public:
void push(t element){arr.push_back(element);sum+=element;}
friend std::ostream& operator<<(std::ostream& os,Sum a){
    os<<a.sum;
    return os;
}
};
signed main(){
    Sum<int>min,max;
    int n;
    std::cin>>n;
    while(n--){
        int l,r;
        std::cin>>l>>r;
        min.push(l),max.push(r);
    }
    std::cout<<min<<' '<<max;
    return 0;
}