236 - Ladder

Ladder

Time Limit: 1 sec

**The Problem**

A ladder is leant against a perpendicular wall. You will be given the distance **S **from wall's grounded point to ladders grounded point and the height **H** from ground to ladders upper point. You have to find the length of the ladder.

**The Input**

There will be two input in each line (**S**<100) and (**L**<100).

**The Output**

You have to print the length of the ladder rounded to two decimal point in a separate line.

**Sample Input**

23 45

**Sample Output**

50.54

Problem Setter: Parag Paul