My data looks like that:

```
0.000000 0.071429 0.071429 0.857143 
0.071429 0.428571 0.071429 0.428571 
0.357143 0.214286 0.357143 0.071429 
0.000000 0.714286 0.000000 0.285714 
0.000000 0.571429 0.000000 0.428571 
0.428571 0.357143 0.071429 0.142857 
0.000000 0.071429 0.071429 0.857143 
0.071429 0.000000 0.928571 0.000000 
0.000000 0.071429 0.000000 0.928571 
0.000000 0.285714 0.000000 0.714286 
0.142857 0.000000 0.785714 0.071429 

```

I want it to look like that:

```
AC name_of_the_file.txt
00 0.000000 0.071429 0.071429 0.857143 
01 0.071429 0.428571 0.071429 0.428571 
02 0.357143 0.214286 0.357143 0.071429 
03 0.000000 0.714286 0.000000 0.285714 
04 0.000000 0.571429 0.000000 0.428571 
05 0.428571 0.357143 0.071429 0.142857 
06 0.000000 0.071429 0.071429 0.857143 
07 0.071429 0.000000 0.928571 0.000000 
08 0.000000 0.071429 0.000000 0.928571 
09 0.000000 0.285714 0.000000 0.714286 
10 0.142857 0.000000 0.785714 0.071429  
XX
//

```

How can I awk $1 for a range (from 00 till the file ends)?