#include<iostream>
#include<fstream>
#include<string>
#include<sstream>
#include<string.h>
using namespace std;

int main(){
    ifstream fin("data.csv");//input file.
    ofstream fout("output.dat");//output file.
    string s;
    stringstream ss;
    char p[200];
    static long lines=1;

    while(fin!=NULL){
    int num=0;//data of float type in total in a line.
    float sum=0.0f;
    getline(fin,s,'\n');
    cout<<s<<endl;
    if(!fin)break;//end of file,break loop.
        if(fout.is_open()){
        fout<<lines<<":  ";//line number.
        }else{
            cout<<"File not found!"<<endl;
        }
    //split
    strcpy(p,s.c_str());
    char* token=strtok(p,",");
    while(token!=NULL){
        float a=0.0f;
        cout<<token<<endl;
        ss<<token;
        ss>>a;
        if(fout.is_open()){
        fout<<a<<",";
        }else{
            cout<<"File not found!"<<endl;
        }
        sum+=a;
        ss.clear();
        ss.str("");
        num++;
        token=strtok(NULL,",");
    }
    lines++;
        cout<<"Sum:"<<sum<<endl;
        cout<<"Average:"<<sum/num<<endl;
        fout<<"   "<<sum<<","<<sum/num<<endl;
    cout<<"============================"<<endl;

}
    fin.close();
    fout.close();
}