C111123313331323113313331313331333132313331322121111331323231311311   >>    C11112331333132311331333131333133313231333132212111133132323131131   <<    C111123313331323113313331313331333132313331322121111331323231311313   >>      C111123313331323113313331313331333132313331322121111331323231311312   >>