program iepuri;

var p,o,l:int64;
    w:array[0..20000000]of int64;
    a,b,c,x,y,z,n:longint;

procedure calcul;
var i:longint;
begin
for i:=3 to n do
    begin
    p:=a*w[i-1];
    o:=b*w[i-2];
    l:=c*w[i-3];
    w[i]:=p+o+l;
    end;
writeln(w[n]);
end;

procedure citire;
var i:integer;
begin
assign(input,'iepuri.in');
assign(output,'iepuri.out');
rewrite(output);
reset(input);
read(n);
for i:=1 to n do
    begin
    readln(x,y,z,a,b,c,n);
    w[0]:=x;
    w[1]:=y;
    w[2]:=z;
    calcul;
    end;
close(output);
close(input);
end;

begin
citire;
end.