#include <stdio.h>
int main(){
    int t;
    scanf("%d",&t);
    while(t--){
    int M;
    scanf("%d",&M);
    int N;
    char name[N];
    scanf("%s",name);

        char p[20];

        if(strcmp((name,p)==0)){
            printf("Welcome!");

        }
        else{
            printf("Sorry, not on the list.");
        }

    }
    return 0;


}