C111123313121111121111331323133313331333132322121111331322112331323132311   >>    C11112331312111112111133132313331333133313232212111133132211233132313231   <<    C111123313121111121111331323133313331333132322121111331322112331323132313   >>      C111123313121111121111331323133313331333132322121111331322112331323132312   >>