The input file would contain multiple cases. Each case contains three lines. Process to the end of file.
The first line contains a single integer n(1 ≤ n ≤200), the number of buttons.
The second line contains n integers T1, T2, ..., Tn, where Ti(1 ≤ Ti ≤ 1,000,000) is the time the ith button would automatic pop up after pressing it, in units of second.
The third line contains n integers D1, D2, ..., Dn, where Di(1 ≤ Di ≤ 1,000,000) is the time hero needed to go between the ith button and the first button, in units of second.
The sequence will be in ascending order and the first element is always 0.