Is it Physics???

Time Limit: 0.5 sec

 

The Problem

Sam loves cars and speed. Now she wants to make a program where she can easily calculate the formulas of velocity.

As you know cars have initial velocity (u), final velocity (v), acceleration (a), time (t) and a distance (s).

You will be given any 3 of u, v, a, s or t. You have to find the missing parameter.

 

The Input

The input file contains several lines. Each line contains 4 integer numbers, N (N<=3) & any 3 of u, v, a, t and s. All are ranged between 0 to 100. Input is terminated by EOF.

 

The input format is

If N = 1 the input contains u, a, t and find the value of s

If N = 2 the input contains u, a, s and find the value of v

If N = 3 the input contains v, a, s and find the value of u

 

The Output

For each line of input output will print the value rounded to 3 decimal points in a separate line.

 

Sample Input

1 10 5 2

2 10 11 2

3 5 1 6

 

Sample Output

30.000

12.000

3.606

 

 

 

Online Mock Contest 2016

Problem Setter: Samia Safa Ahmed