#include <bits/stdc++.h>
using namespace std;

const int N=505;

char s[N];
int dp[N][N];

void work()
{
	int n;
	scanf("%d",&n);
	scanf("%s",s+1);
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
			dp[i][j]=0;

	for(int len=1;len<=n;len++)
	{
		for(int l=1;l+len-1<=n;l++)
		{
			int r=l+len-1;
			if(s[l]=='L' || s[r]=='R')
			{
				dp[l][r]=1;
				continue;
			}

			for(int k=l;k<=r;k++)
			{
				if(s[k]=='L' && dp[l][k-1]==0)
					dp[l][r]=1;

				if(s[k]=='R' && dp[k+1][r]==0)
					dp[l][r]=1;
			}
		}
	}

	if(dp[1][n])
		printf("Alice\n");
	else
		printf("Bob\n");
}

int main()
{
	int T;
	cin >> T;
	while(T--)
		work();
	return 0;
}