#include <iostream>
#include <algorithm>
#include <cstdio>
#include <cstring>
using namespace std;
inline int read(){
	int x=0,f=1;char c=getchar();
	while(c<'0'||c>'9'){if(c=='-')f=-1;c=getchar();}
	while(c>='0'&&c<='9'){x=(x<<1)+(x<<3)+c-'0';c=getchar();}
	return x*f;
}
const int maxn=1e5+10;
const int maxl=1e6+10;
int n;
char out[maxl];
char c[maxl];
int maxx;
int main(){
	freopen("R.in","r",stdin);
	freopen("R.out","w",stdout);
	n=read();
	for(int i=1;i<=n;i++){
		scanf("%s",c+1);
		
		int len=strlen(c+1);
		
		int s=read();
		for(int j=1;j<=s;j++){
			int p=read();
			for(int k=1;k<=len;k++){
				maxx=max(maxx,p);
				out[p++]=c[k];
			}
		}
	}
	for(int i=1;i<=maxx;i++){
		if(!out[i])out[i]='a';
	}
	cout<<out+1<<endl;
	return 0;
}