from collections import deque

h, w = map(int, input().split())
grid = [list(map(int, input().split())) for _ in range(h)]

dy = [-1, 1, 0, 0]
dx = [0, 0, -1, 1]

Q = int(input())

for _ in range(Q):
    r, c, x = map(int, input().split())
    r -= 1
    c -= 1
    original = grid[r][c]
    
    if original == x:
        continue  

    q = deque()
    q.append((r, c))
    grid[r][c] = x  

    while q:
        cy, cx = q.popleft()
        for i in range(4):
            ny = cy + dy[i]
            nx = cx + dx[i]
            if 0 <= ny < h and 0 <= nx < w:
                if grid[ny][nx] == original:
                    grid[ny][nx] = x
                    q.append((ny, nx))

for row in grid:
    print(*row)