count = 0

f = open('1_17.txt')

l = [int(i) for i in f]

max_dvy = 0

for i in range(len(l)):

if abs(l[i]) % 100 == 17:

max_dvy = max(max_dvy, l[i])

for i in range(len(l) - 2):

c = 0

s = [l[i], l[i+1], l[i+2]]

for x in s:

if 99 < abs(x) < 1000:

c += 1

if c == 1 and sum(s) < max_dvy:

count += 1

print(count)

with open('1_17.txt') as f:

s = [int(x) for x in f.readlines()]

m = max(x for x in s if str(x).endswith('17'))

count = 0

def f(arg):

return len(str(abs(arg))) == 3

for i in range(len(s) - 2):

p = [s[i + x] for x in range(3)]

if sum(f(x) for x in p) == 1 and sum(p) < m:

count += 1

print(count)

M = [int(x) for x in open('1_17.txt')]

A = [x for x in M if str(x)[-2:] == '17']

cnt = 0

for i in range(len(M)-2):

x, y, z = M[i:i+3]

D = [a for a in (x, y, z) if len(str(abs(a))) == 3]

if len(D) == 1:

if (x + y + z) < max(A):

cnt += 1

print(cnt)