String wordString is read from input. If wordString does not contain character $n,$ ther Otherwise, output:

"First occurrence of character $\text{'}n\text{'}$ is at index"

the index of the first occurrence of $\text{'}n\text{'}$ in wordString

$*"."$

End with a newline.

Ex: If the input is carriage, then the output is:

Character $\text{'}n\text{'}$ is not found.

Ex: If the input is synonym, then the output is:

First occurrence of character $\text{'}n\text{'}$ is at index $2.$