3123: |a-b| Problem

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:1 Solved:0

Description

数学课上,老师给出a,b两个数,让小O解出|a-b|的值,你能用计算机帮助小O解开吗?

Input

两个数,a,b

Output

输出|a-b|

Sample Input Copy

7 6

Sample Output Copy

1

HINT

数据范围:a<1000,b<1000;

①a可能大于b

②a可能小于b