String slicing

b = "Hello, World!"
print(b[2:5])
# output: llo

b = "Hello, World!"
print(b[:5])
# output: hello

b = "Hello, World!"  
print(b[2:])
 
# output: llo,world!

b = "Hello, World!"
print(b[-5:-2])
 
# output: orl