C111123313121111121111331333132313331323133313331323233232321311   >>    C11112331312111112111133133313231333132313331333132323323232131   <<    C111123313121111121111331333132313331323133313331323233232321313   >>      C111123313121111121111331333132313331323133313331323233232321312   >>