Nicely displayed headings add impact to a document. Write a program to take a character string as input and print it surrounded by a border of exclamation marks. Again, ignore trailing blanks in the...

Nicely displayed headings add impact to a document. Write a program to take a

character string as input and print it surrounded by a border of exclamation marks.

Again, ignore trailing blanks in the input. Leave one blank before the first character and after the last character in the display. If the input is