n = int(input())
e = [int(i) for i in input().split()]
q = []
dop = 'c' * e[1]
q.append(dop)
otvet= []
for i in range(e[0]):
    w = 'c'
    inp = input()
    w += inp
    w += 'c'
    q.append(w)
    otvet.append(inp)
o = 0
q.append(dop)
for i in range(e[0]):
    for j in range(e[1]):
        if q[i][j] == '.' and o == 0:
            if q[i][j - 1] == 'A':
                q[i].replace(q[i][j], 'A')
                for x in range(1, e[0] + 1, 1):
                    dop1 = []
                    for y in range(1, e[1] + 2, 1):
                        if q[x][y] != 'c':
                            dop1.append(q[x][y])
                    print(*dop1)
                o = 1
            elif q[i][j + 1] == 'A':
                q[i].replace(q[i][j], 'A')
                for x in range(1, e[0] + 1, 1):
                    dop1 = []
                    for y in range(1, e[1] + 2, 1):
                        if q[x][y] != 'c':
                            dop1.append(q[x][y])
                    print(*dop1)
                o = 1
            elif q[i + 1][j] == 'A':
                q[i].replace(q[i][j], 'A')
                for x in range(1, e[0] + 1, 1):
                    dop1 = []
                    for y in range(1, e[1] + 2, 1):
                        if q[x][y] != 'c':
                            dop1.append(q[x][y])
                    print(*dop1)
                o = 1
            elif q[i - 1][j] == 'A':
                q[i].replace(q[i][j], 'A')
                for x in range(1, e[0] + 1, 1):
                    dop1 = []
                    for y in range(1, e[1] + 2, 1):
                        if q[x][y] != 'c':
                            dop1.append(q[x][y])
                    print(*dop1)
                o = 1
if o == 0:
    for i in otvet:
        print(i)