Reverse of a number.py

# Write a program to generate the reverse of a given number N. 
# Print the corresponding reverse number.
# Note : If a number has trailing zeros, then its reverse will not include them. 
# For e.g., reverse of 10400 will be 401 instead of 00401.

N = int(input())
sum = 0
while(N != 0):
    r = N % 10
    sum = sum*10+r
    N = N//10
print(sum)