#include <stdio.h>
int main(){
int n,i,id;
if(scanf("%d",&n)!=1 || n<=0){
 printf("invalid input");
 return 0;
}
int arr[n];
for (i=0;i<n;i++){
    if ( scanf("%d",&id)!=1||id<-10000||id>10000){
        printf("invalid input");
        return 0;
    }
    arr[i]=id;
}
for (i=0;i,n;i++){
    printf("%d",arr[i]);
    if(i!=n-1)printf("")
}
   return 0; 
}