process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

process.stdin.on('end', function () {
    input_stdin_array = input_stdin.split("\n");
    main();    
});

function readLine() {
    return input_stdin_array[input_currentline++];
}

/////////////// ignore above this line ////////////////////

function canConstruct(a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    const digits = a.map(toDigits);
    const sum = sumArray(digits.map(sumArray));
    return sum % 3 === 0 ? 'Yes': 'No';
}

function toDigits(num) {
    const digits = [];
    while (Math.floor(num / 10) > 0) {
        digits.push(num % 10);
        num = Math.floor(num / 10);
    }
    digits.push(num);
    return digits;
}

function sumArray(arr) {
    return arr.reduce(function (acc, el) {
        return acc + el;
    }, 0);
}

function main() {
    var t = parseInt(readLine());
    for(var a0 = 0; a0 < t; a0++){
        var n = parseInt(readLine());
        a = readLine().split(' ');
        a = a.map(Number);
        var result = canConstruct(a);
        process.stdout.write("" + result + "\n");
    }

}