1002 A+B for Polynomials (25)（25 分）

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

polynomials.

Input

Each input file contains one test case. Each case occupies 2 lines, and

each line contains the information of a polynomial: K N1 a~N1~ N2 a~N2~

... NK a~NK~, where K is the number of nonzero terms in the polynomial,

Ni and a~Ni~ (i=1, 2, ..., K) are the exponents and coefficients,

respectively. It is given that 1 <= K <= 10，0 <= NK < ...

< N2 < N1 <=1000.

Output

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.

Sample Input

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