C111123313331323113313331333133313331323132333133313132313113112111   >>    C11112331333132311331333133313331333132313233313331313231311311211   <<    C111123313331323113313331333133313331323132333133313132313113112113   >>      C111123313331323113313331333133313331323132333133313132313113112112   >>