Numbers

Jurgita studies digits and numbers. She picked three distinct digits from $1$ to $9$, formed every possible three-digit number using them, and sorted these numbers in increasing order. Because the three digits are all different, there are exactly $6$ distinct three-digit numbers.

You are given a three-digit number $x$ built from the chosen digits. Determine the position of $x$ in the sequence sorted in increasing order.

The first line contains the three digits $a$, $b$, $c$ chosen by Jurgita, separated by spaces. The second line contains the number $x$ formed from the chosen digits.

Print the position of the given number $x$ in the sequence.

• $1 \le a, b, c \le 9$; $a \ne b$; $a \ne c$; $b \ne c$