# Indexing with modulus

Let’s generate a list of numbers from 1 to 6:

```
numbers = list(range(1, 7))
print(numbers)
```

This will print:

`[1, 2, 3, 4, 5, 6]`

Now let’s generate a *new* list of numbers that has a length of 25 and gets its
numbers from the list above:

```
more_numbers = []
for i in range(25):
next_number = numbers[i % len(numbers)]
more_numbers.append(next_number)
print(more_numbers)
```

This will print:

`[1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 1]`

Notice that we use `range(25)`

to append to `more_numbers`

25 times. Then we use
`i % len(numbers)`

to get an index that will loop through the `numbers`

and wrap
back to the beginning as needed. Because `numbers`

has a length of 6, The
variable `i`

will take the values `0 1 2 3 4 5`

and then `0 1 2 3 4 5`

and so
forth.