B1.4 string indexing.py

# create a variable for storing our string.
word = 'github'

# index number - character

# 0 -- g
# 1 -- i
# 2 -- t
# 3 -- h
# 4 -- u
# 5 -- b

# -1 -- b
# -2 -- u
# -3 -- h
# -4 -- t
# -5 -- i
# -6 -- g

print(word[-1])  # we always use [] square bracket for string index.

# output: b