{
ofstream outputfile;
outputfile.open("RESULTS.txt");

ifstream inputfile1;
inputfile1.open("data1.txt");

ifstream inputfile2;
inputfile2.open("data2.txt");

double C, C1, C2, E1, E2;

while (inputfile1 >> E1 >> C1){
while (inputfile2 >> E2 >> C2)
C=C1+C2;
outputfile << E1 << "               " << C <<endl;
}

inputfile1.close();
inputfile2.close();
outputfile.close();
}