请大佬高抬贵手，帮帮我，我一定关注！

#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;
long long n,sum=0;
long long sum1(long long a2){
    long long num=0,a1=a2;
    while(a1!=0){
        num+=a1%10;
        a1/=10;
    }
    return num;
}
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        long long a;
        cin>>a;
        for(int i=1;a!=0;i++){
            long long tmp=a%10;
            a/=10;
            if(i%2==1){
                tmp*=7;
                while(tmp>9){
                    tmp=sum1(tmp);
                }
            }
            sum+=tmp;
        }
        if(sum%8==0)cout<<'T'<<endl;
        else cout<<'F'<<endl;
    }
    return 0;
}

谢谢