#include<stdio.h>
int main(){
    int n,i,x,f=0;
    if(scanf("%d",&n)!=1||n>10)return printf("Invalid input"),0;
    int a[n];
    for(i=0;i<n;i++){
        if(scanf("%d",&n)!=1||a[i]<-10000||a[i]>10000)
        return printf("Inavlid input"),0;
        if(scanf("%d",&x)!=1||x<-10000||x>10000)
        return printf("Invalid input"),0;
        for(i=0;i<n;i++)
            if(!f)return printf("Not Found"),0'
            int p=0;
            for(i=o;i<n;i++)
            if(a[i]!=99999)printf("%s%d",p++?"":"",a[i]);
            if(!p)printf("List is empty");
            return 0;
}