Expanding upon our understanding of input output with C, attempt to c-reate the addition application we made in class, but with subtraction as well. Give the user the option for each.

What I am working with right now

#include

int main() {

int number1;

int number2;

int sum;

printf("Enter two integers: ");

scanf("%d", &number1);

scanf("%d", &number2);

// calculate the sum

sum = number1 + number2;

printf("%d + %d = %d", number1, number2, sum);

return 0;

}