C111123313121111121111331333133313331333112221211111211111323211331322121   >>    C11112331312111112111133133313331333133311222121111121111132321133132212   <<    C111123313121111121111331333133313331333112221211111211111323211331322123   >>      C111123313121111121111331333133313331333112221211111211111323211331322122   >>