#include <iostream>
using namespace std;

int main() {
    int n, a = 0, b = 1, c;
		
		cin>>n;
		cout<<a<<", "<<b;
    for (int i = 1; i <= n; ++i) {
        c = a + b;
        a = b;
        b = c;
        
        cout<<", "<<c;
    }
    
    return 0;
}