# String Concatenationname = "John"age = 25print("Hello, my name is " + name + " and I am " + str(age) + " years old.")# String Interpolationname = "John"age = 25print(f"Hello, my name is {name} and I am {age} years old.")# String Interpolation with format()name = "John"age = 25print("Hello, my name is {} and I am {} years old.".format(name, age))# String Interpolation with format() and positional argumentsname = "John"age = 25print("Hello, my name is {0} and I am {1} years old.".format(name, age))# String Interpolation with format() and keyword argumentsname = "John"age = 25print("Hello, my name is {name} and I am {age} years old.".format(name=name, age=age))# String Interpolation with format() and mixed argumentsname = "John"age = 25print("Hello, my name is {0} and I am {age} years old.".format(name, age=age))