#include<bits/stdc++.h>
using namespace std;
int main()
{
int a0=0 ,a1=1;
int a2=a0+a1;
cout<<a0<<" "<<a1<<" ";






int i=0;
for(i=3;i<=21;i=i+1)
{
a2=a0+a1;    
cout<<a2<<" ";
a0=a1,a1=a2;





}
















return 0;
}