Code Chef Buy Please Solution | code chef | buy please | Code Chef Buy Please

SOlution:- 

#include <stdio.h>

int main()

{

    int a, b, x, y;

    scanf("%d%d%d%d",&a,&b,&x,&y);

    int sum= (a*x)+(b*y);

    printf("%d",sum);

    return 0;

}