제출 #158093

3 8

sqrt : 2
to delete : 2 4 6 
3
5
7

3
5
7

27 30

sqrt : 5
to delete : 2 4 
to delete : 3 
to delete : 
to delete : 5 

29

28 29

sqrt : 5
to delete : 2 
to delete : 3 
to delete : 
to delete : 

29