Read string full$\_$name from input that consists of a three$-$letter first name, a space, and a last name. Then assign first$\_$name$\_$initial with the first letter of the first name and last$\_$name$\_$initial with the first letter of the last name.

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Ex: If the input is Lei Boyd, then the output is:

Initials: LB

Note: Assume the first name will always be three letters long.