120 - Increase of Population

Increase of Population

Time Limit: 1 sec

**The Problem**

In **Bangladesh** every year **X** persons are born and **Y** persons die, for every one thousand of the population. What is the percentage rate of increase of polulation in a year ?

Example:

if **X** = 25 and **Y** = 15 then

Increase rate 1%

**The Input**

The input file contains only 2 integer numbers **X**, **Y **(**X**<1000, **Y **< 1000, **X **>=** Y**).

**The Output**

Output will show the one integer numbers which is percentage rate of increase of polulation in a separate line.

**Sample Input**

25 15

**Sample Output**

1%

Problem Setter: Shahin ShamS