C :

#include<stdio.h>
int main(){
	int i,j,k,h;
	int a,b,c,d;
	scanf("%d %d %d %d",&i,&j,&k,&h);
	scanf("%d %d %d %d",&a,&b,&c,&d);
	int sum=a*i+b*j+c*k+d*h;
	printf("%d\n",sum);
	return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,a1,b1,c1,d1;
int main()
{
	cin>>a>>b>>c>>d>>a1>>b1>>c1>>d1;
	cout<<a*a1+b*b1+c*c1+d*d1;
   return 0;
}

Pascal :

var
  a,b,c,d,e,f,g,h,m:longint;
begin
  readln(a,b,c,d);
  readln(e,f,g,h);
  m:=a*e+b*f+c*g+d*h;
  writeln(m);
end.