#include <stdio.h>
#include "calculate.h"

int main(void) {
    int val = 10;
    printf("value=%d\n", val);
    int val_plus_one = add_one(val);
    printf("value+1=%d\n", val_plus_one);
    int val_minus_one = subtract_one(val);
    printf("value-1=%d\n", val_minus_one);
}