Masha invites Misha to play the next game. Masha writes two numbers on a piece of paper, and in front of Misha are cards with numbers from 0 to 9. Misha's task is to choose such cards for himself, on which numbers are written, which are used to write both the first number and the second.
Input: The input is two natural numbers not exceeding 10
9. Each number on a separate line
Output: Display in ascending order the cards that Misha should take. If Misha cannot take any cards, then print
-1
Examples
| # |
Input |
Output |
| 1 |
514
233 |
-1 |
| 2 |
1248
3472 |
2 4 |