import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
/**
*
* @author Varun Upadhyay (https://github.com/varunu28)
*
*/
public class Fibonacci {
private static Map map = new HashMap();
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int n = Integer.parseInt(br.readLine());
System.out.println(fibMemo(n)); // Returns 8 for n = 6
System.out.println(fibBotUp(n)); // Returns 8 for n = 6
}
/**
* This method finds the nth fibonacci number using memoization technique
*
* @param n The input n for which we have to determine the fibonacci number
* Outputs the nth fibonacci number
**/
private static int fibMemo(int n) {
if (map.containsKey(n)) {
return map.get(n);
}
int f;
if (n <= 2) {
f = 1;
}
else {
f = fibMemo(n-1) + fibMemo(n-2);
map.put(n,f);
}
return f;
}
/**
* This method finds the nth fibonacci number using bottom up
*
* @param n The input n for which we have to determine the fibonacci number
* Outputs the nth fibonacci number
**/
private static int fibBotUp(int n) {
Map fib = new HashMap();
for (int i=1;i