A nursery rhyme:

As I was going to St. Ives,
I met a man with seven wives,
Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits:
Kits, cats, sacks, and wives,
How many were there going to St. Ives?

This riddle raises lots of questions: who is going to St. Ives? In what time was this? What kind of man can survive with 7 wives? And where is St. Ives? For our purposes let's assume everyone/everything in the riddle is going to St. Ives.

Input

No input

Output

An integer indicating how many things/people are going to St. Ives.

Example

Output:

74     # wrong answer (on purpose)