C++ :

#include <iostream>
using namespace std;
// 奇数位要做的数字变换
int trans(int t) {
if (t == 0)
return 0;
return (t * 7 - 1) % 9 + 1;
}
// 判断是否为幸运数
bool judge(long long x) {
int sum = 0;
for (int d = 1; x > 0; d++, x /= 10) {
int t = (int)(x % 10);
if (d % 2 == 0)
sum += t;
else
sum += trans(t);
}
return (sum % 8 == 0);
}
int main() {
int N = 0;
cin >> N;
for (int n = 0; n < N; n++) {
long long x = 0;
cin >> x;
if (judge(x))
cout << "T" << endl;
else
cout << "F" << endl;
}
return 0;
}