Simple calculator program for beginners

calc.c

#include<stdio.h>
int main(int argc, char const *argv[])
{
    /* c program to implement calculater fetures*/
    int a,b,add,sub,mul,div;
    a=2,b=2;
    printf("calculater fetures:\n");
    add=a+b;
    sub=a-b;
    mul=a*b;
    div=a/b;
    printf("add of a and b is %d\n",add);
    printf("sub of a and b is %d\n",sub);
    printf("mul of a and b is %d\n",mul);
    printf("div of a and b is %d\n",div);

    return 0;
}