X lock

X lockX lockX lockX lock
X lockX lockX lockX lockX lockX lockX lockX lock
X lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lock
X lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lockX lock
X lockX lockX lockX lockX lockX lockX lockX lock