Score : $100$ points
Takahashi has rolled three dice. They are showing numbers $a$, $b$, and $c$ on the top faces.
Find the sum of the numbers on the bottom faces.
Here, each of these dice is a standard cubic die, where the sum of the numbers on opposite faces is $7$.
Input is given from Standard Input in the following format:
$a$ $b$ $c$
Print the sum of the numbers on the bottom faces of the three dice.
1 4 3
The numbers on the bottom faces are $6$, $3$, and $4$. We have $6 + 3 + 4 = 13$, which should be printed.
5 6 4