import java.util.Arrays; import java.util.Scanner; import java.util.stream.IntStream; public class Main{ static IntStream REPS(int v){return IntStream.range(0,v);} static IntStream REPS(int l,int r){return IntStream.rangeClosed(l,r);} static IntStream INS(int n) {return REPS(n).map(i->getInt());} static Scanner s=new Scanner(System.in); static int getInt(){return Integer.parseInt(s.next());} public static void main(String[]$){ int r=getInt(),k=getInt(),h=getInt(),w=getInt(); char[][]in=new char[h*k][w*k]; { char[][]buf=REPS(h).mapToObj(o->s.next().toCharArray()).toArray(char[][]::new); for(int i=0;i