https://pintia.cn/problem-sets/994805342720868352/problems/994805526272000000 

1002 A+B for Polynomials (25 分)

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 N1 aN1 N2 aN2 ... NK aNK

where K is the number of nonzero terms in the polynomial, Ni and aNi (i=1,2,⋯,K) are the exponents and coefficients, respectively. It is given that 1≤K≤10，0≤NK<⋯<N2<N1≤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.

Sample Input:

2 1 2.4 0 3.2

2 2 1.5 1 0.5结尾无空行

Sample Output:

3 2 1.5 1 2.9 0 3.2结尾无空行

题意：就是两个多项式相加，每一行代表一个多项式，每一行第一个数代表非零系数的个数，后面每两个一组，分别代表次幂和系数。