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: Runtime Error)

#include <bits/stdc++.h>
using namespace std;

char a, b;

int main() {
  cin >> a >> b;
  int ia = atoi((const char *)a);
  int ib = atoi((const char *)b);
  if (a < b) {
    for (int i = 0; i < ib; ++i) {
      cout << a;
    }
    cout << endl;
  } else {
    for (int i = 0; i < ia; ++i) {
      cout << b;
    }
    cout << endl;
  }
}