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-----
4 3

-----Sample Output-----
3333

We have two strings 444 and 3333. Between them, 3333 is the lexicographically smaller.

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