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.)

Examples

Input

4 3

Output

3333

Input

7 7

Output

7777777

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