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Problem F
Format Name

Accepted submissions to this problem will be granted a score of 100

Write a program that, given a name $s$ of the format lastname, firstname, transforms the name into the format first_initial. lastname where both the first initial and the last name are capitalized.

Input

Input consists of one line, the string $s$ , where $4 \leq | s | \leq 10^{6}$ . The string $s$ consists of two words that are each made up of lowercase English letters, and are separated by one comma and one space.

Output

Output consists of one line, the transformed name.

Sample Input 1	Sample Output 1
ghandi, mahatma	M. Ghandi

Sample Input 2	Sample Output 2
jakobsdottir, katrin	K. Jakobsdottir

Attachments

starter_code.py tests.py

Problem FFormat Name

Input

Output

Problem F
Format Name