class and Interface Relationship: Multiple Interface Implementation

Learning Objective: Implement multiple interfaces in one class

In this problem, you will create a program that implements two interfaces Callable (phone functionality) and MusicPlayer (music player functionality) in a SmartPhone class, and displays the corresponding result based on the input operation (call or play) to standard output.

Create a SmartPhone class that implements both the Callable and MusicPlayer interfaces, and override each method defined in those interfaces.

Input

1 line: Operation (call or play)

Output

For call:

Calling...
```java
For play:
```java
Playing music...
```java

## Example

Input:
```java
call
```java
Output:
```java
Calling...