#include <iostream>
usingnamespace std;
int main () {
cout<<" This program shows a series of fibonacci numbers \n\n\n"<<endl;
cout<<"-------------------------------"<<endl;
int n=0;
int fnum;
int counter=-1;
while (n<=20) {
if (n==1){
fnum=1;
counter=counter+1;
}
while (n>1){
fnum=(n-1)+(n+1);
counter=counter+1;
}
}
cout<<fnum<<endl;
if (n==0){
fnum=0;
counter=counter+1;
}
return 0;