C Programming, How to calculate two number

How to calculate two number

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

int main(){
    int a,b,result;
    printf("Input a=");
    scanf("%d",&a);
    printf("Input b=");
    scanf("%d",&b);
    result=a+b;
    printf("a+b=%d\n",result);
    getch();
}