### Description:
 Remove all exclamation marks from sentence except at the end.
### Examples
```
remove("Hi!") == "Hi!"
remove("Hi!!!") == "Hi!!!"
remove("!Hi") == "Hi"
remove("!Hi!") == "Hi!"
remove("Hi! Hi!") == "Hi Hi!"
remove("Hi") == "Hi"
```
def remove(s):
    return __import__('re').sub(r'!+(?!!*$)','',s)
def remove(s):
    return __import__('re').sub(r'!+(?!!*$)','',s)