You can take in the data immediately to a variable by changing the structure slightly.

fname = input('Enter name: ')
sname = input('Enter surname: ')
age = int(input('Enter age: ')) # will throw an error if not integer

print('Hello, {}. Your surname is {} and your age is {}.'.format(fname, sname, age))

print ("What is you name")
firstname = input()
print ("hello,",firstname)
print ("What is your surname")
surname = input ()
print ("your surname is,",surname)
print ("hello,",firstname,surname)
print("What is your age?")
age = int(input())
print("your age is", age)

Try using \n to put line spacing in between lines. You could also put spaces after the questions (Both inside the quotation marks) to make it so that the names aren't connected to the questions.

On line 5 don't put a space in between input and (
Also, instead of using commas it's better you use + with spaces in between values.

Here is the repl: https://repl.it/@TristanMisja/Help

this should neating it up a bit

firstname = input("What is you name")
print ("hello",firstname)
surname = input ("What is your surname")
print ("your surname is",surname)
print ("hello",firstname,surname)

What do you need help with?

change line 5 from
surname = input ()
to surname = input()

Try:
age = input("What is your age?")

Have you tried:

print ("What is your age?")
age = input ()
print ('Your age is,',age, "!")```

I NEED HELP ADDING WHAT IS YOUR AGE