#!/usr/bin/ python3.8
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import numpy as np

H, W = map(int, readline().split())
A = np.array(readline().split(), np.int64)
B = np.array(readline().split(), np.int64)

A.sort()
B.sort()

L = 1
R = H * W

C = np.zeros((H, W), np.int64)
D = C[:]
while True:
    H, W = D.shape
    if not H:
        break
    if not W:
        break
    if B[0] >= 2:
        D[0] = L + np.arange(W)
        L += W
        n = A[0]
        D[0][n-1:] = D[0][n-1:][::-1]
        A = A[1:]
        B -= 1
        D = D[1:]
        continue
    if A[0] >= 2:
        A, B = B, A
        D = D.T
        continue
    assert A[0] == 1
    n = np.count_nonzero(B <= 1)
    D[0][n:] = (L + np.arange(W - n))[::-1]
    D[0][:n] = R - np.arange(n)
    L += W - n
    R -= n
    A = A[1:]
    B[n:] -= 1
    D = D[1:]
    continue

print('\n'.join(' '.join(row) for row in C.astype(str)))