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 LuaJIT (2.0.4) (judge verdict: Accepted)

local a, b = io.read("*n", "*n")
local s1, s2 = "", ""
for i = 1, a do
  s1 = s1 .. tostring(b)
end
for i = 1, b do
  s2 = s2 .. tostring(a)
end
print(s1 < s2 and s1 or s2)