LCC '18 Contest 5 J4 - How Many 5s?
View as PDFMrs. Krasteva is known to be very good at guessing the number of people in her class that get a score of 5 on the AP exam. So good in fact that she has always been correct or 1-2 students off. Everyone wants to know her current guess so she has a challenge for you.
She will give you a list of numbers in which each number on the list produces the same remainder  when dividing the unknown number of people. You will also be given the value of the remainder 
. She also says that the number of people is the smallest possible number greater than its divisors which satisfies these conditions.
Find the number of people that score a 5 on the AP exam!
Input Specification
The first line will contain the amount of numbers  and the shared remainder 
The next  lines will contain a number 
 which produces the remainder 
 when dividing the number of people.
Output Specification
Output the smallest number of people that score a 5 on the AP exam , satisfying the constraint that the number of people must not be less than 
.
Subtasks
Subtask 1 [40%]
 
 
Subtask 2 [30%]
 
 
Subtask 3 [30%]
 
 
Sample Input 1
2 4
5
6
Sample Output 1
34
Sample Input 2
5 10
20 
66
43
34
45
Sample Output 2
1447390
Comments
Note: Intermediate numbers may or may not fit in a 128 bit integer.