Trying to add a `awk` condition that will add one to `$2` if the sum of `$3` - `$2`is greater than one, The below has a syntax error on the `if` line. Thank you :).

**file**

```
2   21002880    21002881
17  3476163 3476186
11  108292759   108292760
2   218661210   218661265
2   21002865    21002866

```

**desired**

```
2   21002880    21002881
17  3476164 3476186
11  108292759   108292760
2   218661211   218661265
2   21002865    21002866

```

**awk**

```
awk 'BEGIN {FS=OFS="\t"} {sum+=$3-$2}  # define FS, OFS, and sum
  if((sum > 1)) {  # condition check
     print $1,$2+1,$3  # print desired output
     next     # goto next line
  }
 }1' file.txt

```