C111123313121111121111331333133313331323221211113313231123313132323112321   >>    C11112331312111112111133133313331333132322121111331323112331313232311232   <<    C111123313121111121111331333133313331323221211113313231123313132323112323   >>      C111123313121111121111331333133313331323221211113313231123313132323112322   >>