Two string - JavaScript - string swaps - Julia likes this code

Twostring7.js

function processData(input) {
    //Enter your code here
    input=input.split("\n");
    var t=input[0];
    for(var i=1;i<=((input.length)-2);){
        var str1=input[i];
        var str2=input[i+1];
        var len1=str1.length;
        var len2=str2.length;
        if(len2<len1)
        {
            str1=str2;
            str2=input[i];
        }
        
        for(var j=0;j<str1.length;j++)
        {
            if(str2.indexOf(str1[j])>=0)
            {
                console.log("YES");break;
                
            }
            
            
        }if(j==str1.length){console.log("NO");}
        
        i=i+2;
        
    }
    
    
    
    
    
    
} 

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

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