---

count = 0
max_avg = -10**10  # достаточно маленькое число

with open('17.txt') as f:
    nums = [int(x) for x in f]

for i in range(len(nums) - 1):
    s = nums[i] + nums[i + 1]
    
    if s % 2 == 0 and abs(s) % 10 != 6:
        count += 1
        avg = s / 2
        if avg > max_avg:
            max_avg = avg

print(count, int(max_avg) if max_avg != -10**10 else None)