# An Easy Task

## 描述

Ignatius was born in a leap year, so he want to know when he could hold his birthday party. Can you tell him?

Given a positive integers Y which indicate the start year, and a positive integer N, your task is to tell the Nth leap year from year Y.

Note: if year Y is a leap year, then the 1st leap year is year Y.

Given a positive integers Y which indicate the start year, and a positive integer N, your task is to tell the Nth leap year from year Y.

Note: if year Y is a leap year, then the 1st leap year is year Y.

## 输入

The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow.

Each test case contains two positive integers Y and N(1<=N<=10000).

Each test case contains two positive integers Y and N(1<=N<=10000).

## 输出

For each test case, you should output the Nth leap year from year Y.

## 样例

样例输入 #1

```
3
2005 25
1855 12
2004 10000
```

样例输出 #1

```
2108
1904
43236
<i style="font-size:1px"> </i>
```

## 提示

We call year Y a leap year only if (Y%4==0 && Y%100!=0) or Y%400==0.