include

using namespace std;

int main$()\{$

int a$,$ b;

cout $<<$ "Calculator

$"$;

cout $<<"$

Let's add, subtract, multiply, and divide $2$ numbers.

$"$;

$//$ Taking input from the user

cout $<<$ "Insert the first number: $"$;

cin $>>$ a;

cout $<<$ "Insert the second number: $"$;

cin $>>$ b;

$//$ Performing calculations and displaying the results

cout $<<"$

The calculations are:

$"$;

cout $<<"$A $+$ B $="<<($a $+$ b$)<<$ endl;

cout $<<"$A $-$ B $="<<($a $-$ b$)<<$ endl;

cout $<<"$A $*$ B $="<<($a $*$ b$)<<$ endl;

if $($b $!=0)\{$

cout $<<"$A $/$ B $="<<($a $/$ b$)<<$ endl;

cout $<<"$A $\%$ B $="<<($a $\%$ b$)<<$ endl;

$\}$ else $\{$

cout $<<$ "Division and modulus by zero are undefined.

$"$;

$\}$

return $0$;

$\}$

please the program code