#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cmath>
#include<cstdlib>
#include<algorithm>
#include<queue>
#include<vector>
#include<stack>
#include<set>
#include<map>
using namespace std;
char s[81];
int main()
{
    int tt,x;
    scanf("%d",&tt);
    while(tt--)
    {
        scanf("%d %s",&x,s);
        int len=strlen(s);
        if(next_permutation(s,s+len))
            printf("%d %s\n",x,s);
        else
            printf("%d BIGGEST\n",x);
    }
    return 0;
}