- Function
abs()We use it to get the module of a number
- Function
ord()We use it to get the value of a letter in the ASCII table
- Loop with index and value in string
s = "hello"
for i, value in enumerate(s):With this loop we can get both the index and the value of each letter in the word
- Loop with index in string
for i in range(len(s)):With this loop we can get only the index of each letter in the word