#include <iostream>
using namespace std ;

//Fibonacci sequence
// 1 , 1  , 2  ,   3 ,    5
// Do not use loops
// literal expressions .
// Do not use expressions in the cout statement
// Do not create more variables
// Create the next values of the sequence
// by modifying the values of x1 and x2
int main()
{
	int x1 = 1 ;
    int x2 = 1 ;
    int temp ;
    //To do
    temp = x1 + x2 ;
    x1 = x2 ; x2 = temp ;

    //Third Fibonacci
     cout << x2 << endl ;

  temp = x1 + x2 ;
    x1 = x2 ; x2 = temp ;

    //To do
    //Fourth Fibonacci
    cout << x2 << endl ;

}