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Multiply two polynomials
Easy Accuracy: 56.21% Submissions: 3824 Points: 2

Given two polynomials represented by two arrays that contains the coefficients of poynomials, print the polynomial in form of array formed after multiplication of given polynomials.

Input:
The first line contains an integer T, depicting total number of test cases.
First line of each test case contains two integers M and N ,highest degree of the polynomial arr1 and arr2.Next two line contains M and N integers , decribes the coefficients of polynomials

Output:
Print the coefficients of resultant poynomial.

Constraints:
1 <= T <= 100
1 <= M,N <= 100
1 <= arr1[i],arr2[i] <= 100

Example:
Input:
2
4 3
1 0 3 2
2 0 4
5 4
1 9 3 4 7
4 0 2 5

Output:
2 0 10 4 12 8
4 36 14 39 79 23 34 35

Explanation:
First case:
First polynomial:
1 + 0x^1 + 3x^2 + 2x^3
Second polynomial:
2 + 0x^1 + 4x^2
Product polynomial:
2 + 0x^1 + 10x^2 + 4x^3 + 12x^4 + 8x^5

Second case:
First polynomial:
1 + 9x^1 + 3x^2 + 4x^3 + 7x^4
Second polynomial:
4 + 0x^1 + 2x^2 + 5x^3
Product polynomial:
4 + 36x^1 + 14x^2 + 39x^3 + 79x^4 + 23x^5 + 34x^6 + 35x^7