// editor2
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
    int no;
    char name[30];
}Node;
int main(){
    int n,num,itr;
    scanf("%d",&n);
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    Node *detail = (Node*) malloc (n*sizeof(Node));
    for(itr=0;itr<n;itr++){
        scanf("%d",&detail[itr].no);
        scanf("%s",detail[itr].name)
    }
    for(itr=0;itr<n;itr++){
        printf("%d",detail[itr].no);
        printf("%s",detail[itr].name);
    }
}