import java.util.*;
class Main
{
public static void main
(String[]args
) {
Scanner s
=new Scanner
(System.
in); int t=s.nextInt();
while(t-->0)
{
int n=s.nextInt();
int x=s.nextInt();
List<Integer>visited=new ArrayList<>();
int position =x;
visited.add(position);
for(int i=0;i<n;i++)
{
char c=S.charAt(i);
if(c=='L')
{
position--;
}
else
{
position++;
}
if(!visited.contains(position))
{
visited.add(position);
}
}
System.
out.
println(visited.
size());
}
}
}
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