import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		new Main().run();
	}
	
	void run() {
		Scanner sc=new Scanner(System.in);
		int H=sc.nextInt();
		int W=sc.nextInt();
		int[] A=new int[H];
		int[] B=new int[W];
		int[][] m=new int[H][W];
		for(int h=0;h<H;++h)for(int w=0;w<W;++w)m[h][w]=-1;
		for(int i=0;i<A.length;++i) {
			A[i]=-sc.nextInt();
		}
		for(int i=0;i<B.length;++i) {
			B[i]=-sc.nextInt();
		}
		Arrays.sort(A);
		Arrays.sort(B);
		for(int i=0;i<A.length;++i)A[i]*=-1;
		for(int i=0;i<B.length;++i)B[i]*=-1;
		int s=1,t=H*W;
		for(int h=0;h<H;++h) {
			int bottom=0,top=0;
			for(int w=0;w<W;++w) {
				if(B[w]>1)++bottom;
				else ++top;
			}
			if(A[h]>1) {
				int left=Math.min(bottom,(top==0?A[h]:(A[h]-1)));
				int right=A[h]-left;
				for(int w=0;w<left;++w) {
					m[h][bottom-left+w]=s++;
				}
				for(int w=0;w<bottom-left;++w) {
					m[h][bottom-left-1-w]=s++;
				}
				for(int w=0;w<top-right;++w) {
					m[h][bottom+w]=t--;
				}
				for(int w=0;w<right;++w) {
					m[h][W-1-w]=t--;
				}
			}else {
				for(int w=0;w<W;++w) {
					s=t-(H-h)+1;
					int t_=t;
					for(int i=h;i<H;++i) {
						if(B[w]>1) {
							{m[i][w]=s++;B[w]--;}
						}else m[i][w]=t--;
					}
					t=t_-(H-h);
				}
				break;
			}
			for(int w=0;w<W;++w)B[w]=Math.max(B[w]-1, 1);
		}
		PrintWriter pw=new PrintWriter(System.out);
		for(int h=0;h<H;++h) {
			for(int w=0;w<W;++w) {
				pw.print(m[h][w]+(w==W-1?"\n":" "));
			}
		}
		pw.close();
	}
	
	void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}
}