# 题目描述

This time, you are supposed to find $A+B$ where $A$ and $B$ are two polynomials.

# Input Specification:

Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial:

$K N_1 a_{N_1} N_2 a_{N_2}...N_Ka_{N_K}$ where $K$ is the number of nonzero terms in the polynomial, $N_i$ and $a_{N_i}(i=1,2,\cdots ,K)$ are the exponents and coefficients, respectively. It is given that $1≤K≤10, 0≤N_K<⋯< N_2< N_1≤1000$.

# Output Specification:

For each test case you should output the sum of $A$ and $B$ in one line, with the same format as the input. Notice that there must be NO extra space at the end of each line. Please be accurate to 1 decimal place.

2 1 2.4 0 3.2
2 2 1.5 1 0.5

# Sample Output:

3 2 1.5 1 2.9 0 3.2