https://kompege.ru/task 9993

from math import *


def foo(n):
    if n < 1:
        return False
    sq = round(sqrt(n)) + 10
    for i in range(2, sq):
        if n % i == 0:
            return False
    return True


f = list(map(int, open("C:/tmp/17.txt").readlines()))

max17 = -10**8
for i in f:
    if abs(i) % 100 == 17:
        max17 = max(i, max17)
cnt = 0
maxMul = 0
for i in range(len(f)-1):
    if (foo(f[i]) and not foo(f[i+1]) or foo(f[i + 1]) and not foo(f[i])) and ((f[i] + f[i + 1]) % max17 == 0):
        cnt += 1
        maxMul = max(maxMul, f[i] * f[i+1])

print(cnt, maxMul)