#Strings are identified as a contiguous set of characters..
#..represented in the quotation marks. Python allows either..
#..pair of single or double quotes. Subsets of strings can be..
#..taken using the slice operator ([] and [:]) with indexes..
#..starting at 0 in the beginning of the string and working..
#..their way from -1 to the end.

#The plus (+) sign is the string concatenation operator..
#..and the asterisk (*) is the repetition operator.

str = 'Hello World!'
print(str) #Prints complete string.
print (str[0]) #Prints first character of the sring.
print(str[2:5]) #Prints characters starting from 3rd to 5th.
print(str[2:]) #Prints string starting from 3rd character.
print(str *2) #Prints string two times.
print(str + "TEST") #Prints concatenated (linked or chained) string.