1676A.cpp

#include<iostream>
using namespace std;

int main(){
    int n;
    cin >> n;
    while(n--)
    {
        string s;
        cin >> s;
        int a = s[0]-'0', b = s[1]-'0', c = s[2]-'0';
        int x = s[3]-'0', y = s[4]-'0', z = s[5]-'0';
        if(a+b+c == x+y+z){
            cout << "YES" << endl;
        }
        else{
            cout << "NO" << endl;
        }
        
    }
}