#include<stdio.h>
 #include<string.h>
 int main (){
     int n,i;
     char fruits[50][50];
     char search[50];
     int found=0;
     scanf("%d",&n);
     if(n<=0){
         printf("Invalid number of fruits!");
         return 0;
         }
         for(i=0;i<n;i++){
             scanf("%s",fruits[i]);
         }
         scanf("%d",search);
         for(i=0;i<n;i++){
             if(strcmp(fruits[i],search)==0){
                 found=1;
                 break;
             }
         }
         if(found==1){
             for(i=0;i<n;i++){
                 printf("%d",fruits[i]);
             }
             else{
                 printf()
             }
         }
     }
 }