Problems
Numbers with different digits
Numbers with different digits
Print all four digit numbers from a to b with different digits.
Input
Two integers a and b (1000 ≤ a ≤ b ≤ 9999).
Output
Print in one line all numbers from a to b with different digits.
Input example #1
2000 2015
Output example #1
2013 2014 2015
Input example #2
9875 9999
Output example #2
9875 9876