## IOI '15 P4 - Horses (Standard I/O)

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Points: 15 (partial)
Time limit: 1.0s
Memory limit: 256M

Problem type

Mansur loves to breed horses, just like his ancient ancestors did. He now has the largest herd in Kazakhstan. But this was not always the case. years ago, Mansur was just a dzhigit (Kazakh for a young man) and he only had a single horse. He dreamed to make a lot of money and to finally become a bai (Kazakh for a very rich person).

Let us number the years from to in chronological order (i.e., year is the most recent one). The weather of each year influenced the growth of the herd. For each year , Mansur remembers a positive integer growth coefficient . If you started year with horses, you ended the year with horses in your herd.

Horses could only be sold at the end of a year. For each year , Mansur remembers a positive integer : the price for which he could sell a horse at the end of year . After each year, it was possible to sell arbitrarily many horses, each at the same price .

Mansur wonders what is the largest amount of money he could have now if he had chosen the best moments to sell his horses during the years. You have the honor of being a guest on Mansur's toi (Kazakh for holiday), and he asked you to answer this question.

Mansur's memory improves throughout the evening, and so he makes a sequence of updates. Each update will change either one of the values or one of the values . After each update he again asks you the largest amount of money he could have earned by selling his horses. Mansur's updates are cumulative: each of your answers should take into account all of the previous updates. Note that a single or may be updated multiple times.

The actual answers to Mansur's questions can be huge. In order to avoid working with large numbers, you are only required to report the answers modulo .

#### Example

Suppose that there are years, with the following information:

012
X213
Y341

For these initial values, Mansur can earn the most if he sells both his horses at the end of year 1. The entire process will look as follows:

• Initially, Mansur has 1 horse.
• After year 0 he will have horses.
• After year 1 he will have horses.
• He can now sell those two horses. The total profit will be .

Then, suppose that there is update: changing to .

After the update we will have:

012
X213
Y321

In this case, one of the optimal solutions is to sell one horse after year 0 and then three horses after year 2. The entire process will look as follows:

• Initially, Mansur has 1 horse.
• After year 0 he will have horses.
• He can now sell one of those horses for , and have one horse left.
• After year 1 he will have horse.
• After year 2 he will have horses.
• He can now sell those three horses for . The total amount of money is .

Your task is, given , , and the list of updates, before the first update and after every update, compute the maximal amount of money that Mansur could get for his horses, modulo .

#### Input Specification

Line of input will contain the single integer representing the number of years.
Line of input will contain the array , with adjacent numbers separated by a single space. For , gives the growth coefficient for year . Note that this is the initial value given by Mansur (before any updates).
Line of input will contain the array , with adjacent numbers separated by a single space. For , gives the price of a horse after year . Note that this is the initial value given by Mansur (before any updates).
Line of input will contain the single integer , representing the number of updates to follow.
Lines will each contain three space-separated numbers , , and ( for updating and for updating ). is an integer from the range and is the new value for .

#### Output Specification

The first line of output should contain a single integer representing the maximal amount of money Mansur could get for the initial values of and (before any of the updates), modulo .
For each of the next updates, output on a separate line containing a single integer representing the maximal amount of money Mansur could get after this update, modulo .

#### Sample Input

3
2 1 3
3 4 1
1
2 1 2

#### Sample Output

8
6