##### Vincent Massey SS - 2014 Senior Contest #1

Lil' Jami is playing with a set of cups numbered and an infinite number of stones. Each cup initially has stones in it. Since he has an infinite amount of free time, Lil' Jami plays a game where he repeatedly adds a stone to a cup. He does this times.

Following this, there will be queries of
the form `a b`

. For each query, find the sum of
the stones in cups numbered .

#### Input Specification

The first line will contain the integers and separated by a space.

The next lines will each contain a single integer
meaning to add a stone to the cup with index (for ).

The next line will contain the single integer .

The next lines will contain two space-separated integers and .

#### Output Specification

For each query, print the sum of the number of stones in each of the cups in the range , inclusive.

#### Sample Input

```
5 3
1
1
2
2
0 2
2 4
```

#### Sample Output

```
3
1
```

## Comments