#!/usr/bin/env python


mystr = 'Hello World!'

print(mystr)                    # Prints complete string 
print(mystr[0])                 # Prints first character of the string 
print(mystr[2:5])               # Prints characters starting from 3rd to 6th 
print(mystr[2:])                # Prints string starting from 3rd character 
print(mystr * 2)                # Prints string two times 
print(mystr + "TEST")           # Prints concatenated string