FIBFUNCH - Fun with Fibonacci Series (Challenge)

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Fibonacci series is a series in which every element is sum of previous 2 elements.

first 2elements are 0,1 and the series goes like 0,1,1,2,3,5,8,13 ........

 

What if you were given 2 random numbers as the starting of the series and u follow the same rule as the Fibonacci rule.

for eg. if you were given 2 and 2 .. the series would become

2 2 4 6 10 16 26 .........

 

Now your task is simple ...

You will be given 2 numbers a & b .. the first and second term of the series..

you need to calculate the sum of first n numbers of the series so formed..

Since the numbers can be big you need to print the result mod some number 'M' provided in the input.

Input

first line will have single number 't' - number of test cases.

each test case will have 4 numbers a,b,n & M

a- first number of the series

b- second number of the series

n- calculate the sum till n numbers

M- print the result mod M

Output

single number for each case - sum of n terms mod M

Example

Input:
2
2 2 10 21
1 3 10 21

 Output: 13
4

Explanation - for first case series is 2 2 4 6 10 16 26 42 68 110 .. Sum is 286.. o/p = 286%21 = 13
NOTE -
Number of test cases <=100.
0 <= a,b<= 10^8
1 <= n,m <= 10^8
actually n ranges from 1 to 10^8

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Francky: 2013-04-13 19:00:13

Why those langage restrictions ?
Please, open to all.


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languages like python, ruby etc have undue advantage.. wanted to have a level playing field

Last edit: 2012-04-26 17:56:43

Added by:Devil D
Date:2012-04-26
Time limit:1s
Source limit:4000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
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