Given are two strings $S$ and $T$ consisting of lowercase English letters. Concatenate $T$ and $S$ in this order, without space in between, and print the resulting string.

Input is given from Standard Input in the following format:

```
$S$ $T$
```

Print the resulting string.

-   $S$ and $T$ are strings consisting of lowercase English letters.
-   The lengths of $S$ and $T$ are between $1$ and $100$ (inclusive).

atcoder

When $S = $ oder and $T = $ atc, concatenating $T$ and $S$ in this order results in atcoder.