A File contains a list of names and telephone numbers in the following form:

AJIT 281050
ANIL 462890
HRISHIKESH 524358
----
----

The names contains only one word and the telephone numbers are separated by white spaces.

Write an interactive program to:

1. Create the above file.
2. Display the contents in two columns.
3. Search a telephone number for a given name.
4. Exit the program.