Problem:
Score : 200 points

Problem Statement

Given are 1-digit positive integers a and b. Consider these two strings: the concatenation of b copies of the digit a, and the concatenation of a copies of the digit b. Which of these is lexicographically smaller?

Constraints

1 \leq a \leq 9

1 \leq b \leq 9

a and b are integers.

Input

Input is given from Standard Input in the following format:

a b

Output

Print the lexicographically smaller of the two strings. (If the two strings are equal, print one of them.)

Sample Input 1

4 3

Sample Output 1

3333

We have two strings 444 and 3333. Between them, 3333 is the lexicographically smaller.

Sample Input 2

7 7

Sample Output 2

7777777

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include<iostream>
#include<bits/stdc++.h>
#include<iomanip>
#include<math.h>
#include<vector>
#include<cctype>
#include<string>
#include<set>
#include<map>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
std::string line;
typedef long long ll;

int main(){
   string a,b;   cin >> a >> b;

   char bch = b[0];
   int bnum = bch - '0';
   rep(i,bnum-1){
      a += a[0];
   }

   char ach = a[0];
   int anum = ach - '0';
   rep(i,anum-1){
      b += b[0];
   }

   if(a <= b) cout << a << endl;
   else cout << b << endl;

   




   return 0;
}