#include <bits/stdc++.h>
using namespace std;
int main(){
	int i,j,m,n,max=0,min=9999,a,b,c,d;
	cin>>m>>n;
	int s[10][10];
	for(i=0;i<m;i++){
		for(j=0;j<n;j++){
			cin>>s[i][j];
			if(s[i][j]>max){
				max=s[i][j];
				a=i; b=j;
			}
			if(min>s[i][j]){
				min=s[i][j];
				c=i; d=j;
			}	
		}
	}
	swap(s[a][b],s[c][d]);
	for(i=0;i<m;i++){
		for(j=0;j<n;j++){
			cout<<s[i][j]<<" ";
		}
		cout<<endl;
	}
	return 0;
	}

/**************************************************************
	Problem: 1999
	User: fzy001
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/