This time, you are supposed to find A+B where A and B are two polynomials.
//这次，你要做得是找到A+B并且A+B是两个多项式
Input Specification:
//输入样例
Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial:
//每个输入文件包含1个测试例子。每一个例子占两行，并且一行包括一个多项式的信息
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.
//K是多项式中非零的个数，Ni和aNi（i=1，2，3，......，k）分别代表第几项和它的系数
所给的1<=K<=10,0<=Nk<......<N2<N1<=1000.
Output Specification://输出样例
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.
//每一个测试样例你应该在一行输出A+B的和，和输入的形式一样（意思就是：先输出几项再输出项数从大到小输出第几项分别是什么）。注意每一行的最后没有空格。
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
