string_1 = input().split()
num, ceil_value, ceil_num = string_1[0], string_1[1], string_1[2]
num, ceil_num = int(num), int(ceil_num)
count_may_empty, count_empty = 0, 0
for i in range(num):
	string_2 = input().split()
	count = 0
	if int(string_2[0]) <= ceil_num:		
		for num_2 in string_2[1:]:
			if num_2 < ceil_value:
				count += 1
		if count * 2 > int(string_2[0]):
			count_may_empty += 1
	else:
		for num_2 in string_2[1:]:
			if num_2 < ceil_value:
				count += 1
		if count * 2 > int(string_2[0]):
			count_empty += 1
#print(count_may_empty)
#print(count_empty)	
print('%.1f%% %.1f%%'%(count_may_empty / float(num) * 100,count_empty / float(num) * 100))  	
'''
print('%.1f' % (count_may_empty / float(num) * 100), end = '')
print('% ', end = '')
print('%.1f' % (count_empty / float(num) * 100), end = '')
print('%')
'''