#include<bits/stdc++.h> using namespace std; int main(){ int a[21]; a[1] = 1; a[2] = 1; cout << a[1] << endl; cout << a[2] << endl; for(int i = 3; i <= 20; i++){ a[i] = a[i-1] + a[i-2]; cout << a[i] << endl; } return 0; }