#include <stdio.h>
#include<string.h>

struct vector {
    int x;
    int y;
};
void calcSum(struct vector v1,struct vector v2,struct vector sum);

int main() {
    struct vector v1={5,10};
    struct vector v2={3,8};
    struct vector sum={0};
    
    calcSum(v1,v2,sum);
    return 0;
}
void calcSum(struct vector v1,struct vector v2,struct vector sum){
     sum.x=v1.x+v2.x;
     sum.y=v1.y+v2.y;
     printf("sum of x is : %d\n",sum.x);
     printf("sum of y is : %d\n",sum.y);
}