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Safari World

Time limit1sMemory limit128 MB

Summary
Read two integers and print the absolute value of their difference.
Level

Easy1 of 10

Topics
Math, Implementation
Solved
No attempts yet

Problem

Safari World is a mysterious country that exists only on the internet. It has two subdomains, seunghwan.royal.gov.sw and kyuhyun.royal.gov.sw. We want to compare the popularity of the two subdomains and find the difference between their popularity values.

Each subdomain's popularity is given as an integer. Given two popularity values N and M, write a program that prints the absolute difference between them.

Input

The first line contains two integers N and M, the popularity values of the two subdomains, separated by a space.

-2,000,000,000 <= N, M <= 2,000,000,000

Output

Print |N - M|, the difference between the two popularity values.

Examples1

  1. Example 1

    Input
    -2 5
    
    Expected output
    7