#include<iostream>
using namespace std;
int main()
{
    float a,b,c,d;
    cout<<"DCMT: ">>;
    cin>>a;
    cout<<"DCLD: ">>;
    cin>>b;
    cout<<"IC: ">>;
    cin>>c;
    cout<<"EMT: ">>;
    cin>>d;
    
    float avg1=(a+b+c+d)/4;
    cout<<"Avg mark for = "<<avg1;
    
    float avg2=(a*2+b*2+c*2+d*2)/4;
    cout<<"Avg mark for = "<<avg2;
    
    return 0;
}