Q

fin = open('input.txt', 'r')
fout = open('output.txt', 'w')

n, m = map(int, fin.readline().rstrip().split())
A = []
Q = []
x0, y0 = map(int, fin.readline().rstrip().split())
New_color = int(fin.readline().rstrip())
for i in range(n):
    A.append(list(map(int, fin.readline().rstrip().split())))

color = A[y0][x0]
Q.append((y0, x0))
count = 0
if A[y0][x0] != New_color:
    while len(Q) != 0:
        y, x = Q.pop(0)
        if A[y][x] == color:
            count += 1
            A[y][x] = New_color
            if x > 0:
                Q.append((y, x - 1))
            if x < m - 1:
                Q.append((y, x + 1))
            if y > 0:
                Q.append((y - 1, x))
            if y < n - 1:
                Q.append((y + 1, x))
fout.write(str(count) + '\n')

for i in range(n):
    fout.write(' '.join(list(map(str, A[i]))) + '\n')

fin.close()
fout.close()