时间限制

400 ms

内存限制

65536 kB

代码长度限制

16000 B

判题程序

Standard

作者

CHEN, Yue

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

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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 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.

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Output Specification:
**

For each test case you should output the product 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 up to 1 decimal place.

2 1 2.4 0 3.2 2 2 1.5 1 0.5

3 3 3.6 2 6.0 1 1.6