#include<bits/stdc++.h>
using namespace std;
int n,m,s[105][105],h=0;
int main(){
cin>>n>>m;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cin>>s[i][j];
if(s[i][j]>h){
h=s[i][j];
}
}
cout<<h<<endl;
}
}
/**************************************************************
Problem: 1996
User: zhangjinpei
Language: C++
Result: Wrong Answer
****************************************************************/