1941: 买衣服

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:441 Solved:2

Description

一件上衣a元,裤子比上衣便宜b元,买一套衣服要多少元?

Input

一行,两个整数,分别表示a,b

Output

一行,一个整数

Sample Input Copy

20 10

Sample Output Copy

30

Source/Category