n, m = list(map(int, input().split())) people = [] for i in range(n): people.append(max(list(map(int,input().split())))) max_point = 0 member = 0 for i in range(n): if people[i] > max_point: member = 1 max_point = people[i] elif people[i] == max_point: member += 1 else: pass print(member)