#include <bits/stdc++.h>

using namespace std;

int minChan(int a[], int l, int r) {
	if (r == l) {
		if (a[l] % 2 == 0) return a[l];
		else return INT_MAX;
	} else {
		int m = (l + r) / 2;
		int min1 = minChan(a, l, m);
		int min2 = minChan(a, m + 1, r);
		if (min1 < min2) return min1;
		else return min2;
	}
}

int main() {
	int a[] = {9, 8, 3, -4, 5, 6, 2, 9, 5, 1};
	cout << "So chan nho nhat: " << minChan(a, 0, 9) << endl;
	return 0;
}