`python
def sum_numbers(n):
    return sum(range(1, n+1))
`
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Create a Python function to compute the sum of numbers from 1 to n.

### Input:


### Response:
`python
def sum_numbers(n):
    return sum(range(1, n+1))
`<|im_end|>