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 <algorithm>
#include <vector>
#include <set>
#include <map>
#include <cmath>
#include <queue>
#include <numeric>

using namespace std;
#define repp(i,a,b) for(int i = (int)(a) ; i < (int)(b) ; ++i)
#define reppe(i,a,b) for(int i = (int)(a) ; i <= (int)(b) ; ++i)
#define repm(i,a,b) for(int i = (int)(a) ; i > (int)(b) ; --i)
#define repme(i,a,b) for(int i = (int)(a) ; i >= (int)(b) ; --i)

typedef long long ll;

long long GCD(long long a, long long b){if(b==0)return a;return GCD(b,a%b);}

int main() {
    int a, b; cin >> a >> b;
    int aa = 0;
    int bb = 0;
    repp(i,0,b) {
        aa *= 10;
        aa += a;
    }
    repp(i,0,a) {
        bb *= 10;
        bb += b;
    }
    cout << min(to_string(aa), to_string(bb)) << endl;
}