import sys
import math
# Don't let the machines win. You are humanity's last hope...

width = int(input())  # the number of cells on the X axis
height = int(input())  # the number of cells on the Y axis
line = []
for i in range(height):
    line.append(list(input()))
    #print(input())
# Write an action using print
# To debug: print("Debug messages...", file=sys.stderr)
#line = [[["0"],["0"],["0"]]]
answer = ""

def checkSafeNode(x,y,answer):
    if(line[y][x] == "0"):
                answer += (str(x) + " " + str(y) + " ")#(str(i) + " " + str(j) + " ")

                if(line[y][x+1] == "0"):
                    answer += (str(x+1) + " " + str(y) + " ")#(str(i) + " " + str(j + 1) + " ")
                    #line[i][j+1] = "."
                else:
                    answer += ("-1 -1 ")

                if(line[y+1][x] == "0"):
                    answer += (str(x) + " " + str(y+1) + ", ")#(str(i+1) + " " + str(j) + " ")
                    #line[i+1][j] = "."
                else:
                    answer += ("-1 -1, ")
    return answer

def checkWidthNode(x,y,answer):
    if(line[y][x] == "0"):
                answer += (str(x) + " " + str(y) + " ")#(str(i) + " " + str(j) + " ")
                answer += ("-1 -1 ")

                if(line[y+1][x] == "0"):
                    answer += (str(x) + " " + str(y+1) + ", ")#(str(i+1) + " " + str(j) + " ")
                    #line[i+1][j] = "."
                else:
                    answer += ("-1 -1, ")
    return answer

def checkHeightNode(x,y,answer):
    if(line[y][x] == "0"):
                answer += (str(x) + " " + str(y) + " ")#(str(i) + " " + str(j) + " ")

                if(line[y][x+1] == "0"):
                    answer += (str(x+1) + " " + str(y) + " ")#(str(i) + " " + str(j + 1) + " ")
                    #line[i][j+1] = "."
                else:
                    answer += ("-1 -1 ")

                answer += ("-1 -1, ")
    return answer

def checkFinalNode(x,y,answer):
    if(line[y][x] == "0"):
                answer += (str(x) + " " + str(y) + " ")#(str(i) + " " + str(j) + " ")
                answer += ("-1 -1 ")
                answer += ("-1 -1, ")
    return answer


for y in range(height):
    for x in range(width):
        if(y < (height-1) and x < (width-1)):
            answer = checkSafeNode(x,y,answer)
        elif(x == (width-1) and y < (height-1)):
            answer = checkWidthNode(x,y,answer)
        elif(y == (height-1) and x < (width-1)):
           answer = checkHeightNode(x,y,answer)
        elif(y == (height-1) and x == (width-1)):
            answer = checkFinalNode(x,y,answer)



answer = answer.split(",")

for i in answer:
    print(i)

# Three coordinates: a node, its right neighbor, its bottom neighbor
#print("0 0 1 0 0 1")