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```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
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lang-bash
(( sum += arr[i] ))sum=0 for i in "${arr[@]}" do if (( "i" -gt 0 )); then sum =$psum+"$i" elif (( "i" -lt 0 )); then sum$nsum+"$i" fi done echo "positive = $psum" echo "negative = $nsum"