The task is to write the sequence of numbers that encodes the given internet address.

Solution:

• The internet address is https://river.kz/water.txt.
• We need to map each part of the address to the given numbers:
  • https corresponds to 5
  • :// corresponds to 2
  • river corresponds to 6
  • .kz corresponds to 4
  • / corresponds to 7
  • water corresponds to 1
  • .txt corresponds to 3
• Therefore, the sequence of numbers encoding the address is 5264713.

Answer: 5264713