PROG-T1007: Bee

#include <bits/stdc++.h>
using namespace std;

const int N = 24;

int dp[N + 1];

int main(){

    dp[0] = 2;
    dp[1] = 4;
    for(int i = 2; i <= N; ++i){
        dp[i] = dp[i - 1] + dp[i - 2] + 1;
    }

    while(true){
        int year;
        scanf("%d", &year);
        if(year == -1){
            break;
        }
        cout << dp[year - 1] << " " << dp[year] << "\n";
    }

    return 0;
}