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 <bits/stdc++.h>
using ll = long long;
using namespace std;

int main(void)
{
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);

  string a, b; cin >> a >> b;
  string A = "", B = "";

  for (int i = 0; i < stoi(b); i++) {
    A.append(a);
  }

  for (int i = 0; i < stoi(a); i++) {
    B.append(b);
  }

  if (A < B)
    cout << A << endl;
  else
    cout << B << endl;

  return 0;
}