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The cash machine

Beginner

Python for kids 路 Lesson 28: Checking the data - before we calculate

Problem Statement

Read how much money is in the account, then the amount to withdraw. If the withdrawal is bigger than the money in the account, print BRAK SRODKOW (not enough money). Otherwise print how much will be left.

Input Format

Two whole numbers: the balance (0..1000) and the withdrawal (1..1000), each on its own line.

Output Format

A number or BRAK SRODKOW.

Examples
Example 1

Input

50
30

Output

20
Example 2

Input

50
80

Output

BRAK SRODKOW