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Determining the day of the week by date
PHP
Easy
date
Task «Determining the day of the week by date»
Write a program that takes a date in the format 'YYYY-MM-DD' and determines the day of the week for that date. Output the name of the day of the week in Russian (понедельник, вторник, среда, четверг, пятница, суббота, воскресенье). It is guaranteed that the entered date exists and is within the range from 1900-01-01 to 2100-01-01.
Input Format
One line containing a date in the format YYYY-MM-DD.
Output Format
One line — the name of the day of the week in Russian.
Examples
Example 1
INPUT
3 3
1 2 3
4 5 6
7 8 9
OUTPUT
3 2 1
6 5 4
9 8 7
Example 2
INPUT
1 10
OUTPUT
17
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