Automated Telephone Exchange

Time Limit: 3000 ms Memory Limit: 65536 KiB

Problem Description

In St Petersburg phone numbers are formatted as “XXX–XX–XX”, where the first three digits represent index of the Automated Telephone Exchange (ATE). Each ATE has exactly 10000 unique phone numbers.Peter has just bought a new flat and now he wants to install a telephone line. He thinks that a phone number is lucky if the arithmetic expression represented by that phone number is equal to zero. For
example, the phone number 102–40–62 is lucky (102-40-62 = 0), and the number 157–10–47 is not lucky (157-10-47 = 100 != 0).
Peter knows the index of the ATE that serves his house. To get an idea of his chances to get a lucky number he wants to know how many lucky numbers his ATE has.

Input

 The input file contains a single integer number n — the index of Peter’s ATE (100 <= n <= 999).

Output

 Output a single integer number — the number of lucky phone numbers Peter’s ATE has.

Sample Input

196
239

Sample Output

3
0

Hint

 

Source