C111123313331323113313331313331333132313331322121111331322313111   >>    C11112331333132311331333131333133313231333132212111133132231311   <<    C111123313331323113313331313331333132313331322121111331322313113   >>      C111123313331323113313331313331333132313331322121111331322313112   >>