#include <iostream>

using namespace std;

int Function1(void);
int main() {
    int i;

    for(i=0;i<20;i++) {
       cout << Function1() << endl;
    }

    return 0;
}

int Function1(void) {
    static int current=1;
    static int previous = 1;
    static int count = 0;
    int returnValue;

    if (count == 0 or count == 1) {
       returnValue = 1;
       count ++;
    } else {
       returnValue = current+previous;
       previous = current;
       current = returnValue;
    }
  
    return returnValue;

   

}