#include<stdio.h>
#include<iostream>
#include<algorithm>

struct name
{
    int a;
    char c;
};

bool check(name x, name y)
{
    if(x.a<y.a)return 1;
    if(x.a>y.a)return 0;
    
    if(x.c<y.c)return 1;
    return 0;
}

using namespace std;

int main ()
{
    freopen ("symbol.in", "r", stdin);
    freopen ("symbol.out", "w", stdout);
    
    int i,j;
    name k[5];
    
    for(i=0;i<5;i++)
    {
        scanf("%d %c", &k[i].a, &k[i].c);
    }
    
    sort(k,k+5,check);
    
    for(i=0;i<5;i++)
    {
        for(j=0;j<k[i].a;j++)
        {
            printf("%c", k[i].c);
        }
        printf("\n");
    } 
        
    return 0;
}