Two string - JavaScript solution - split, shift, splice(0,2), stdin.resume, setEncoding

Twostring1.js

function check(arr) {
    a = arr[0];
    b = arr[1];
    var contains = 'NO';
    for (var i=0;i<b.length;i++) {
        if (a.indexOf(b[i]) != -1) {
            contains = 'YES';
            break;
        }
    }
    console.log(contains)
    
}

function processData(input) {
    //Enter your code here
    var input = input.split("\n");
    input.shift();
    while (input.length) {
        check(input.splice(0,2))
    }
} 

process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
    _input += input;
});

process.stdin.on("end", function () {
   processData(_input);
});