#include "bits/stdc++.h" #define REP(i,n,N) for(ll i=(n); i<(N); i++) #define RREP(i,n,N) for(ll i=(N-1); i>=n; i--) #define CK(n,a,b) ((a)<=(n)&&(n)<(b)) #define ALL(v) (v).begin(),(v).end() #define p(s) cout<<(s)<> typedef long long int ll; using namespace std; const ll inf=1e18; ll N,M; ll R[100010][12]; int main(){ while(cin>>N>>M) { map mp; ll mx[12]; set kouho[12]; REP(i, 0, 11) mx[i] = 0; REP(i, 0, N) { REP(j, 0, M) { cin >> R[i][j]; } } REP(i, 0, N) { REP(j, 0, M) { if (R[i][j] > mx[j]) { mx[j] = R[i][j]; for (auto ss: kouho[j]) { mp[ss]--; if (mp[ss] == 0) mp.erase(ss); } kouho[j].clear(); } if (R[i][j] == mx[j]) { kouho[j].insert(i); mp[i]++; } } p(mp.size()); } } return 0; }