C111123313121111121111331313331333132313331323133313231322121323311   >>    C11112331312111112111133131333133313231333132313331323132212132331   <<    C111123313121111121111331313331333132313331323133313231322121323313   >>      C111123313121111121111331313331333132313331323133313231322121323312   >>