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Write a Python function `check_char(string)` that checks whether the given string starts and ends with the same character. The function should return `"Valid"` if the string starts and ends with the same character, and `"Invalid"` otherwise.
#### Example Usage
```python [main.nopy]
check_char("abba") # Output: "Valid"
check_char("a") # Output: "Valid"
check_char("abcd") # Output: "Invalid"
```
#### Constraints
- The input string will only contain lowercase alphabetic characters (`a-z`).
- The input string will have a length of at least 1.def check_char(string):
"""
Check if the given string starts and ends with the same character.
Args:
string (str): The input string to check.
Returns:
str: "Valid" if the string starts and ends with the same character, "Invalid" otherwise.
"""
# Implement the function logic here
pass