s = input()
print(1004)
ans = [['#']*1004 for _ in range(1004)]
for i in range(1004):
	ans[-1][i] = '.'
	ans[i][-1] = '.'
n = len(s)
ans[0][0] = '.'
ni,nj = 0,0
for i in range(n):
	if i%2 == 0:
		ans[ni+1][nj] = '.'
		ans[ni+2][nj] = '.'
		ni += 2
		if s[i] == 'o':
			for j in range(ni,1003):
				ans[j][nj] = '.'
	else:
		ans[ni][nj+1] = '.'
		ans[ni][nj+2] = '.'
		nj += 2
		if s[i] == 'o':
			for j in range(nj,1003):
				ans[ni][j] = '.'

for i in ans:
	print("".join(i))