fulll indexing link now hd wowowe
https://colab.research.google.com/drive/1zMPuF_kMMjNrrvnY6U9xqqurw4tqh3Ai
https://colab.research.google.com/drive/1j1UMMPlIWAZ5foRIfCw_ECHao-gN9ej_
https://colab.research.google.com/drive/154aW35_Jamq5he9cZtsFGRVPRam1t4nt
https://colab.research.google.com/drive/1ayrstuovH3JoxVzMjzT-STt7OpV_BVeK
https://onlinegdb.com/Syc566LvP
https://paiza.io/projects/3I4hNrKsAA44NOm7MiscfA?language=php