A student starts out with $47$ math problems. Then, num$\_$solved is read from input representing the number of math problems solved. Assign problems$\_$remaining with the number of math problems that are left.

Ex: If the input is $8,$ then the output is:

$39$

$1$ num$\_$solved $={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(input())$

$"\text{'}$ Your code goes here $"\text{'}$

$4$

$5$ print$($problems$\_$remaining$)$