Untitled

mn = input().split(" ")
m = int(mn[0])
n = int(mn[1])
matrix = []

for i in range(m):
    line = input().split(" ")
    matrix.append(line)

for i in range(n):
    for j in range(m):
        if matrix[i][j] == 0:
            print(i)
            for x in range(m):
                matrix[i][x] = 0
            for y in range(n):
                matrix[y][j] = 0

for x in range(m):
    for y in range(n):
        print(matrix[x][y],"", end ='')
    print("")