Help me in solving LB08A problem

My issue

how will i take input in this problem ?

My code

# Step 1: Read and understand the problem statement and sample test cases

# Click on Next once you are ready to proceed.
shoe = int(input())

Learning course: Python for problem solving - 2
Problem Link: CodeChef: Practical coding for everyone

u don’t need to take it , just click on next and solve next section.