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 Ruby (2.3.3) (judge verdict: Accepted)

def function(a, b)
	s_a = (0...a).map { |_| b.to_s }.join
	s_b = (0...b).map { |_| a.to_s }.join
	s_a <= s_b ? s_a : s_b
end

a, b = gets.chomp.split.map(&:to_i)
puts function(a, b)