C111123313331323113313331313331333132313331322121133132322132311   >>    C11112331333132311331333131333133313231333132212113313232213231   <<    C111123313331323113313331313331333132313331322121133132322132313   >>      C111123313331323113313331313331333132313331322121133132322132312   >>