Why the output (is 555 when ip is 5) in playground

Question

s = input("Enter amount please: ")
print(s)
print ('new payment will be: ')
y=s+(s*2)
print (y)

Answer 1

You are basically adding string to string
So if someone enters 450

It's "450"+("450"*2)
which is 450450450

Remember input returns string you need to convert the input to int explicitly
int(input())

Answer 2

The input is a string '5' and not a number.

s = int(input()) will make it a number.

Answer 3

What is the output?

Answer 4

Ok.. got it.. tysm

Answer 5

How to return a string value?

Answer 6

Oh ok.. i was trying with
int x = input () which was error
Ty..