#include <iostream>
using namespace std;
 
int main() {
           int a, b, c;
           cout << "Erste Zahl a: ";
           cin >> a;
           cout << a << endl;
 
           cout << "Zweite Zahl b: ";
           cin >> b;
           cout << b << endl;
 
           c = a;
           cout << "Zwischenvariable c: " << endl;
 
           a = b ;
           cout << "neu a; " << a << endl;
 
           b = c;
           cout << "neu b: " << b << endl;
 
 
 
	// your code goes here
	return 0;
}

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Erste Zahl a: 2
Zweite Zahl b: 4
Zwischenvariable c: 2
neu a: 4
neu b:2