#include<bits/stdc++.h> using namespace std; int main() { long long m,n,k; cin>>n>>m; int a[n*m],j; for(int i=1;i<=m*n;i++){ cin>>a[i];} for(int i=1;i<=m;i++){ cout<<a[i]<<" "; k=1; j=0; while(k==n-1){ j+=m; cout<<a[i+j]<<" "; k++; } cout<<endl; } return 0; }