仅30分(求改)

#include<bits/stdc++.h>
using namespace std;
int n,a[50],i,j,k1,k2,d,t;
int main(){
	// freopen("1.in","r",stdin);
	// freopen("1.out","w",stdout);
	cin>>n;
	for(i=1;i<=n;i++){
		cin>>a[i];
	}
	for(i=1;i<=n;i++){
		k1=a[i];
		for(;k1!=0;){
			k2=k1%10;
			t=0;
			if(k2==1){
				a[i]+=6*pow(10,t-1);
			}
			if(k2==5){
				a[i]+=3*pow(10,t-1);
			}
			if(k2==7){
				a[i]-=6*pow(10,t-1);
			}
			k1/=10;
			t++;
		}
	}
	for(i=1;i<=n;i++){
		for(;a[i]!=0;){
			d+=a[i]%10;
			a[i]/=10;
		}
		if(d%8==0) cout<<"T"<<endl;
		else cout<<"F"<<endl;
		d=0;
	}
    return 0;
}