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Badminton team has the n-person male and female athletes. Given two n × n matrix P and Q. P [i] [j] is the male athletes and female athletes i j composed of mixed doubles pair of male athletes race superiority Q [i] [j] i and female athletes with male athletes, female athletes contest j advantage. Mental state due to technical cooperation and other factors, P [i] [j] is not necessarily equal to Q [j] [i]. Male Athlete of the i and j are paired into a female athlete mixed doubles competition advantages for both men and women P [i] [j]* Q [j] [i]. Design an algorithm to calculate the best sportsmen and women pair method, so that competition benefits both men and women in each group the sum of the maximum.
Input:. The first line has a positive integer n (1 ≤ n ≤ 20). The next 2n lines, each
N number of rows. First n rows is p, after n line is q.
Output: line: the sum of both men and women race the maximum advantag