Help me in solving CCLEARN problem

My issue

2*N is correct concept,then why the output doesn’t came?

My code

# cook your dish here
N=input()
c=N*2
print(c)

Learning course: Practice Python
Problem Link: CodeChef: Practical coding for everyone

@jayashri257
U have to take input like this.

# cook your dish here
num = int(input())
ans = 2*num
print(ans)