Сложность: Лёгкая
t = open('17_17133+.txt') s = [int(n) for n in t.readlines()] d = [] h = max(s) for i in range(len(s)-2): u = [s[i], s[i+1], s[i+2]] if len([x for x in u if '0' in str(x)]) >= 1: if sum(u) < h/2: d.append(sum(u)) print(len(d), max(d))