Problem Statement

*Depending on the language used, your solution may get TLE.

RenoirRyou bought a set of $N$ pastels at a certain art supply store, but

while using them, one pastel of a certain colour went missing.

Output the missing colour as $S$.

Here, let $A$ be the set of pastels originally bought,

and let $B$ be the set of pastels after the one pastel of a certain colour went missing.

Input

$N$
$A_1\ A_2\ \dots\ A_N$
$B_1\ B_2\ \dots\ B_{N-1}$

$2 \le N \le 10^5$
$B$ is the sequence obtained by removing $1$ pastel from $A$, and the order of the remaining pastels is the same as in $A$.
A and B are each space-separated strings, each being one of the 7 colours $Red,Orange,Yellow,Green,Cyan,Blue,Violet$.
Note that there may be duplicates.

Output

Print a newline at the end.

Sample

4
Red Blue Violet Red
Red Blue Red

Violet

2
Blue Red
Red

Blue

6
Red Red Red Red Red Red
Red Red Red Red Red

Red