Help me in solving FIT problem

My issue

x= int(input())
y= x25

print(y,‘km’)

My code

# cook your dish here

x= int(input())
y= x*2*5
print(y,'km')

Learning course: Basic Math using Python
Problem Link: Fitness Practice Problem in - CodeChef

remove ‘km’ in print

just take x as input and print (x25).