#https://inf-ege.sdamgia.ru/problem?id=48438 data = open('17.txt').readlines() mn = 10000000 for i in range(len(data)): a = int(data[i]) if abs(a) % 10 == 7: mn = min(mn, a) cnt = 0 mx = -10000000 for i in range(len(data) - 1): a = int(data[i]) b = int(data[i + 1]) if (a ** 2 + b ** 2 < mn ** 2) and (((abs(a) % 10 == 7) and (abs(b) % 10 != 7)) or ((abs(a) % 10 != 7) and (abs(b) % 10 == 7))): cnt += 1 mx = max(mx, a ** 2 + b ** 2) print(cnt, mx)