import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;
class TestClass {
public static void main(String args[] ) throws Exception {
String a,b;
int t,count=0;
Scanner in=new Scanner(System.in);
t=in.nextInt();
while(t!=0)
{
count=0;
a=in.next();
b=in.next();
char[] c,c1;
c=a.toCharArray();
c1=b.toCharArray();
for(int i=0;i<c.length;i++)
{
for(int j=0;j<c1.length;j++)
{
if(c[i]==c1[j])
{
count++;
break;
}
}
}
if(count>0)
System.out.println("YES");
else
System.out.println("NO");
t--;
}
}
}
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