even_numbers

number_list = [int(x) for x in input().split(", ")]
print([idx for idx, number in enumerate(number_list) if number % 2 == 0])


#2
# number_list = list(map(int, input().split(', ')))
#
# even_indices = []
#
# for index, num in enumerate(number_list):
#     if num % 2 == 0:
#         even_indices.append(index)
#
# print(even_indices)