#!/usr/bin/env python import sys from itertools import groupby ints = (int(item) for line in sys.stdin for item in line.split(',')) size = lambda it: sum(1 for _ in it) max_neg_run = max(size(same_sign) for isnegative, same_sign in groupby(ints, key=lambda x: x < 0) if isnegative) print(max_neg_run)
-2, 0, 2, -1, -2, -11, -2, 3, 5, 1, -1, -1, 1, -2, -1, -2 -3,-2, 0, 2, -1, -2, -11, -2, 3, 5, 1, -1, -1, 1, -2, -1, 2