if (mode4in4 == "4") { // mode4in4 start 4
        cout << endl << "1 Celsius til ..." << endl;
        cout << "2 Fahrenheit til ..." << endl;
        cout << "3 Kelvin til ..." << endl;
         cin >> mode4o4; 
         if (mode4o4 == "1") { // mode4o4 4 - 1 start
         cout << endl << "1 Celsius til fahrenheit" << endl;
         cout << "2 Celsius til kelvin" << endl;
         cin >> modelol;
         if (modelol == "1") {
                     cout << "Skriv inn temperaturen i celsius for A fA den i fahrenheit" << endl;
                     cin >> tall1;
                     svar = (tall1 * 9/5) + 32;
                     cout << tall1 << "øC = " << svar << "øF" << endl;
                     }
                     if (modelol == "2") {
                                 cout << "Skriv inn temperaturen i celsius for A fA den i kelvin" << endl;
                     cin >> tall1;
                     svar = tall1 + 273,15;
                     cout << tall1 << "øC = " << svar << "K" << endl;
                     }
                     } // mode4o4 4 - 1 end
                     if (mode4o4 == "2") { // mode4o4 4 - 2 start
                     cout << endl << "1 Fahrenheit til celsius" << endl;
         cout << "2 Fahrenheit til kelvin" << endl;
         cin >> modelol;
         if (modelol == "1") {
                     cout << "Skriv inn temperaturen i fahrenheit for A fA den i celsius" << endl;
                     cin >> tall1;
                     svar = (tall1 - 32) * 5/9;
                     cout << tall1 << "øF = " << svar << "øC" << endl;
                     }
                     if (modelol == "2") {
                                 cout << "Skriv inn temperaturen i fahrenheit for A fA den i kelvin" << endl;
                     cin >> tall1;
                     svar = (tall1 + 460) * 5/9;
                     cout << tall1 << "øF = " << svar << "K" << endl;
                     }
                     } // mode4o4 4 - 2 end
                     if (mode4o4 == "3") { // mode4o4 4 - 3 start
                     cout << endl << "1 Kelvin til celsius" << endl;
         cout << "2 Kelvin til fahrenheit" << endl;
         cin >> modelol;
         if (modelol == "1") {
                     cout << "Skriv inn temperaturen i kelvin for A fA den i celsius" << endl;
                     cin >> tall1;
                     svar = tall1 - 273,15;
                     cout << tall1 << "K = " << svar << "øC" << endl;
                     }
                     if (modelol == "2") {
                                 cout << "Skriv inn temperaturen i kelvin for A fA den i fahrenheit" << endl;
                     cin >> tall1;
                     svar = (tall1 * 9/5) - 460;
                     cout << tall1 << "K = " << svar << "øF" << endl;
                     }
                     } // mode4o4 4 - 3 end
         } // mode4in4 end 4