# 1
import random
(A, B, N) = [int(i) for i in input("Введите строку: ").split(' ')]
a = [random.randint(A, B) for i in range(N)]

print(' '.join([str(i) for i in a]))

pairs = list(zip(a[:N // 2], a[N - (N // 2):][::-1]))
sum_list = [sum(i) for i in pairs]
sum_list_even = [i for i in sum_list if not i % 2]
if len(sum_list_even) == 0:
	print("0 0")
else:
	pair_1_index = len(sum_list) - 1 - sum_list[::-1].index(max(sum_list_even)) + 1
	pair_2_index = N - pair_1_index + 1
	print(pair_1_index, pair_2_index)



#2
import random
(A, B, N) = [int(i) for i in input("Введите строку: ").split(' ')]
a = [random.randint(A, B) for i in range(N)]

print(' '.join([str(i) for i in a]))

a1 = []
a2 = []
for i in a:
	if i < 50:
		a1.append(i)
	else:
		a2.append(i)

if len(a1) == 0:
	average1 = 0
else:
	average1 = sum(a1) / len(a1)

if len(a2) == 0:
	average2 = 0
else:
	average2 = sum(a2) / len(a2)

print(f"{average1:.3f} {average2:.3f}")