Untitled

#include <iostream>
using namespace std;
int main()
{
	int dig = 0, n, ok[100], sum_a = 0, sum_b = 0;
	cin >> n;
	for (int i = 0; n != 0; i++) {
		ok[i] = n % 10;
		n = n / 10;
		dig++;
	}
	if (dig % 2 != 0) {
		cout << "no.";
	}
	else {
		for (int i = 0; i < dig / 2; i++) {
			sum_a = sum_a + ok[i];
		}
		for (int i = dig / 2; i < dig; i++) {
			sum_b = sum_b + ok[i];
		}
		if (sum_a == sum_b) {
			cout << "balanced :)";
		}
		else {
			cout << "no.";
		}
	}
}