itstep

#include <iostream>
#include <fstream>
#include <cmath>
#include <math.h>


using namespace std;

int a = 5;
int b = 4;
int c;

int main(int argc, const char * argv[]) {

   	c=b;
   	b=a;
   	a=c;
   	cout<< a << " " << b << endl;

}