Given a list and a value, find the index of the given value in the list.
List: [3, 8, 10, 20], Value: 10
The value 10 is located at index 2 in the given list.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a list and a value, find the index of the given value in the list.

### Input:
List: [3, 8, 10, 20], Value: 10

### Output:
The value 10 is located at index 2 in the given list.