import sys
from collections import Counter

def input(): return sys.stdin.readline().strip()
def list2d(a, b, c): return [[c] * b for i in range(a)]
def list3d(a, b, c, d): return [[[d] * c for j in range(b)] for i in range(a)]
def list4d(a, b, c, d, e): return [[[[e] * d for j in range(c)] for j in range(b)] for i in range(a)]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10**9)
INF = 10**19
MOD = 10**9 + 7
EPS = 10**-10

N, M = MAP()
A = [[] for i in range(N)]
for i in range(N):
    A[i] = LIST()

mx = [0] * M
se = [set() for i in range(M)]
C = Counter()
for i in range(N):
    for j in range(M):
        if A[i][j] > mx[j]:
            mx[j] = A[i][j]
            for a in se[j]:
                C[a] -= 1
                if C[a] == 0:
                    del C[a]
            se[j] = set([i])
            C[i] += 1
        elif A[i][j] == mx[j]:
            se[j].add(i)
            C[i] += 1
    print(len(C))