#include <iostream>
#include <string>
#include <cstdio>
#include <cstring>
#include <sstream>
#include <cstdlib>
using namespace std;

class Student {
     private:
    char name[20],num[20],a;
    int age,aver1,aver2,aver3,aver4,i=0,j=0;
    double aver;
      public:
    void input(){int i=0,j=0;
    while((name[i]=getchar())!=',')i++;
			name[i]='\0';
            cin>>age>>a;
             while((num[j]=getchar())!=',')j++;
             
			num[j]='\0';
           cin>>aver1>>a>>aver2>>a>>aver3>>a>>aver4;}

     void calculate() {aver=(aver1+aver2+aver3+aver4)/4;}

    void output()
     {cout<<name<<','<<age<<','<<num<<','<<aver<<endl;}

              };

int main() {
	Student student;        // 定义类的对象
	student.input();        // 输入数据
	student.calculate();    // 计算平均成绩
	student.output();       // 输出数据
}