n=int(input())
s1=list(map(int,input().split()))
alen=len([item for item in s1 if 0<=item<=18])
print("%d %.2lf%%"%(alen,100*alen/len(s1)))
alen=len([item for item in s1 if 19<=item<=35])
print("%d %.2lf%%"%(alen,100*alen/len(s1)))
alen=len([item for item in s1 if 36<=item<=60])
print("%d %.2lf%%"%(alen,100*alen/len(s1)))
alen=len([item for item in s1 if 61<=item])
print("%d %.2lf%%"%(alen,100*alen/len(s1)))

/**************************************************************
	Problem: 1426
	User: admin
	Language: Python
	Result: Accepted
	Time:123 ms
	Memory:34480 kb
****************************************************************/