#include <bits/sdc++.h>
using namespace std;

main() {
	int a = 20, b = 22, c;
	c = a;
	a = b;
	b = c;
	cout << "a=" << a << endl;
	cout << "b=" << b;
	return ;
}

#include<bits/stdc++.h>
using namespace std;
int main(){
    cout<<"a=22"<<endl;
    cout<<"b=20"<<endl;
    return 0;
}