given_string = input('Enter a string: ')
even_chars = []
odd_chars = []
for i in range(len(given_string)):
if i % 2 == 0:
even_chars.append(given_string[i])
else:
odd_chars.append(given_string[i])
print('Odd characters: {}'.format(odd_chars))
print('Even characters: {}'.format(even_chars))