#include <stdio.h>
#include <stdlib.h>

/*
https://www.cprogramming.com/reference/functions/function-definition.html
*/

int getint()
{
    int i;
    printf( "type a number :");
    scanf("%d", &i);
    return i;
}

// define a function that adds two integers
int myadd (int a, int b)
{
    return a + b;
}

// define a function that substracts two integers
int mysub (int a, int b)
{
    return a - b;
}

// define a function that multiplies two integers
int mymul (int a, int b)
{
    return a * b;
}

// define a function that divides two integers
int mydiv (int a, int b)
{
    return a / b;
}

// and prints it
void p_add (int a, int b)
{
    printf( "\nYou entered: a = %d , b = %d, a + b = %d",  a,b,myadd(a,b));
}

void p_sub (int a, int b)
{
    printf( "\nYou entered: a = %d , b = %d, a - b = %d",  a,b,mysub(a,b));
}

void p_mul (int a, int b)
{
    printf( "\nYou entered: a = %d , b = %d, a * b = %d",  a,b,mymul(a,b));
}

void p_div (int a, int b)
{
    printf( "\nYou entered: a = %d , b = %d, a / b = %d",  a,b,mydiv(a,b));
}

int main()
{
    int a,b;
    a = getint();
    b = getint();

    p_add(a,b);
    p_sub(a,b);
    p_mul(a,b);
    p_div(a,b);

    return 0;
}