#include <bits/stdc++.h>
using namespace std;
int fib(int n)
{
	int res[n + 1];
	res[0] = 0;
	res[1] = 1;
	for (int i = 2; i <= n; i++)
	{
		res[i] = res[i - 1] + res[i - 2];
	}
	return res[n];
}
int main(int argc, char const *argv[])
{
	int n;
	cout << "Enter n: ";
	cin >> n;
	cout << "Fibonacci number is ";
	cout << fib(n) << endl;
	return 0;
}