Objective
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Task
Consider a database table, Emails, which has the attributes First Name and Email ID. Given rows of data simulating the Emails table, print an alphabetically-ordered list of people whose email address ends in .
Input Format
The first line contains an integer, , total number of rows in the table.
Each of the subsequent lines contains space-separated strings denoting a person's first name and email ID, respectively.
Constraints
- Each of the first names consists of lower case letters only.
- Each of the email IDs consists of lower case letters , and only.
- The length of the first name is no longer than 20.
- The length of the email ID is no longer than 50.
Output Format
Print an alphabetically-ordered list of first names for every user with a gmail account. Each name must be printed on a new line.
Sample Input
6
riya riya@gmail.com
julia julia@julia.me
julia sjulia@gmail.com
julia julia@gmail.com
samantha samantha@gmail.com
tanya tanya@gmail.com
Sample Output
julia
julia
riya
samantha
tanya