#define LL long long
using namespace std;

int get_single(int x){
    while(x>9){
        int sum=0;
        while(x){
            sum+=x%10;
            x/=10;
        }
        x=sum;
    }
    return x;
}

bool check(LL num){
    vector<int> digits;
    while(num){
        digits.push_back(num%10);
        num/=10;
    }
    int total=0;
    for(int i=0;i<digits.size();i++){
        int pos=i+1;
        int d=digits[i];
        if(pos%2==1){
            int val=d*7;
            val=get_single(val);
            total+=val;
        }else{
            total+=d;
        }
    }
    return total%8==0;
}

int main(){
    int N;
    cin>>N;
    while(N--){
        LL x;
        cin>>x;
        if(check(x)) cout<<"T"<<endl;
        else cout<<"F"<<endl;
    }
    return 0;
}
//:)
//114514

click to my bilibili

***```language #include <bits/stdc++.h> #define LL long long using namespace std;

int get_single(int x){ while(x>9){ int sum=0; while(x){ sum+=x%10; x/=10; } x=sum; } return x; }

bool check(LL num){ vector digits; while(num){ digits.push_back(num%10); num/=10; } int total=0; for(int i=0;i<digits.size();i++){ int pos=i+1; int d=digits[i]; if(pos%21){ int val=d*7; val=get_single(val); total+=val; }else{ total+=d; } } return total%80; }

int main(){ int N; cin>>N; while(N--){ LL x; cin>>x; if(check(x)) cout<<"T"<<endl; else cout<<"F"<<endl; } return 0; } //:) //114514

#include<bits/stdc++.h>
using namespace std;
const int N=1e3+10;
int n;
long long h;
int ac(int y,int x){
	if(x%2==0)
        return y;
    y*=7;
    while(y>9){
        int temp=y,cnt=0;
        while(temp!=0){
            cnt+=temp%10;
            temp/=10;
        }
        y=cnt;
    }
    return y;
}
bool AC(long long x){
	long long sum=0,i=1;
	while(x!=0){
        sum+=ac(x%10,i);
        x/=10;
        i++;
	}
	if(sum%8==0)
	    return true;
	else return false;
}
int main()
{
    cin>>n;
    for(int i=0;i<n;i++){
    	cin>>h;
    	if(AC(h))
    	    cout<<'T'<<endl;
    	else cout<<'F'<<endl;
	}
	return 0;
}