#include <iostream>
#include <string>
using namespace std;
int main() {
    string name;
    int marks,sum=0;
    float avg;
    for(i=1;i<=3;i++)
    {
        cout<<"ENTER YOUR NAME :"<<endl;
        cin>>name;
        cout<<"ENTER YOUR MARKS"<<endl;
        cin>>marks;
        sum=sum+marks;
    }
    avg=sum/3;
    cout<<avg;
    return 0;
}