\begin{array}{c} \color{#db1616}{\texttt{#Khoadang09}} \end{array}
`@`$\texttt{Python: }$

arr = list(map(int,input().split()))
print(sum(arr))
print(sum(arr)/len(arr))

`@`$\texttt{Ngoài lề: }$

  - Hàm sum(arr) : tính tổng danh sách

  - Hàm len(arr) : lấy độ dài mảng 

⇒ sum(arr) / len(arr) : trung bình cộng danh sách arr

#include <bits/stdc++.h>
#define ll long long
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#pragma GCC optimize("O3","unroll-loops")
#pragma GCC optimize("Ofast")
using namespace std;
int main() {
    string s;
    getline(cin,s);
    stringstream ss(s);
    ll a;
    vector<ll>p;
    while(ss>>a)
    {
        p.push_back(a);
    }
    ll sum=0;
    for(int i=0;i<p.size();i++)
    {
        sum+=p[i];
    }
    cout<<sum<<"\n";
    cout<<(double)sum/p.size();

    return 0;
}