Class Creation: Calculator Class

Learning Objective: Create simple class and call methods

Create calculator class that can add and subtract two numbers. Implement add and subtract methods in class.

Input

Line 1: Number 1 (integer)
Line 2: Number 2 (integer)

Output

Addition: [result]
Subtraction: [result]
```java

## Examples

### Example 1: Calculate 10 and 5
Input:
```java
10
5
```java
Output:
```java
Addition: 15
Subtraction: 5
```java

### Example 2: Calculate 20 and 15
Input:
```java
20
15
```java
Output:
```java
Addition: 35
Subtraction: 5
```java

### Example 3: Calculate 0 and 0 (boundary)
Input:
```java
0
0
```java
Output:
```java
Addition: 0
Subtraction: 0