Compile Error 编译失败!!C++

#include <bits/stdc++.h>
using namespace std;

int main() {
	int a, b, ans = 1;
	cin >> a >> b;
	for(int i = 1;i <= b; ++i){
		ans = ans * a
	}
	if(ans % 7 == 0){
		cout << "Sunday";
	} else if(ans % 7 == 1){
		cout << "Monday";
	} else if(ans % 7 == 2){
		cout << "Tuesday";
	} else if(ans % 7 == 3){
		cout << "Wednesday";
	} else if(ans % 7 == 4){
		cout << "Thursday";
	} else if(ans % 7 == 5){
		cout << "Friday";
	} else if(ans % 7 == 6){
		cout << "Saturday";
	}
	return 0;
}