# with open("hello.txt", "w") as file:
#     file.write("hello world")
list = [ 'b', 'в', 'г', 'ґ', 'д', 'ж', 'з', 'й', 'к', 'л', 'м', 'н', 'п', 'р', 'с', 'т', 'ф', 'х', 'ц', 'ч', 'ш', 'щ' ]
l = []
with open("input.txt", "r") as file:
    # for line in file:
    temp = file.readlines()
    for i in temp:
        l = i.split(' ')
count = 0
for i in l:
    # print(i)
    for j in range(0, len(i)):
        # print(i[j])
        if i[j] == list[0]:
            count+=1
        else:
            count = 0
        if count >= 2:

            continue
index = l.index('bbbo')
print(index)
# for i in l:
    # print(i)