#include <bits/stdc++.h>
#define MAX 100005
using namespace std;

int main()
{
    int test, n, value;

    scanf("%d", &test);

    while(test--){
        scanf("%d", &n);
        int sum = 0;
        for(int i = 0; i < n; i++){
            scanf("%d", &value);
            while(value != 0){
                int rem = value % 10;
                sum += rem;
                value = value / 10;
            }
        }
        //cout<<sum<<endl;
        if(sum % 3 == 0){
            printf("Yes\n");
        }
        else{
            printf("No\n");
        }
    }

    return 0;
}