这两天测试了很多组数据 都没有问题 求大佬帮我找出漏洞！！！

#include<iostream>
using namespace std;
int main() {
	long long a = 0, b = 0, x = 0;
	cin >> a >> b;
	x = a;
	for (int i = 1; i < b; i++)
	{
		a = a * x;
	}
	int n = a % 7;
	if (n == 0)  cout << "Sunday" << endl;
	else if (n == 1) cout << "Monday" << endl;
	else if (n == 2) cout << "Tuesday" << endl;
	else if (n == 3) cout << "Wednesday" << endl;
	else if (n == 4) cout << "Thursday" << endl;
	else if (n == 5) cout << "Friday" << endl;
	else cout << "Saturday" << endl;
	return 0;
}