try:
    m, n = map(int, input().split())
    matrix = []
    for _ in range(m):
        row = input().split()
        if not all(item.lstrip('-').isdigit()for item in row):
            print("Invalid input")
            exit()
        matrix.append([int(x) for x in row])
        for row in matrix:
            print(' '.join(str(x if x % 2 != 0 else 0) for x in row))
except Exception:
    print("Invalid input")