C111123313331323113313331313331333132313331322121133132313232311   >>    C11112331333132311331333131333133313231333132212113313231323231   <<    C111123313331323113313331313331333132313331322121133132313232313   >>      C111123313331323113313331313331333132313331322121133132313232312   >>