program ural1205;
const
maxn=200;
var
x,y:array[1..maxn]of real;
dist,path:array[1..maxn,1..maxn]of real;
pre:array[1..maxn,1..maxn]of byte;
route:array[1..maxn]of byte;
vfoot,vtrain,xa,ya,xb,yb,min,t:real;
n,i,j,k,l:byte;
begin
read(vfoot,vtrain,n);
for i:=1 to n do
read(x[i],y[i]);
for i:=1 to n do
for j:=1 to n do begin
dist[i,j]:=1e38;
path[i,j]:=1e38;
pre[i,j]:=i;
end;
repeat
read(i,j);
if i=0 then break;
dist[i,j]:=sqrt(sqr(x[i]-x[j])+sqr(y[i]-y[j]));dist[j,i]:=dist[i,j];
path[i,j]:=dist[i,j];path[j,i]:=dist[j,i];
until false;
read(xa,ya,xb,yb);
for k:=1 to n do
for i:=1 to n do
for j:=1 to n do
if path[i,k]+path[k,j]<path[i,j] then begin
path[i,j]:=path[i,k]+path[k,j];
pre[i,j]:=pre[k,j];
end;
min:=sqrt(sqr(xa-xb)+sqr(ya-yb))/vfoot;
for i:=1 to n do
for j:=1 to n do begin
t:=(sqrt(sqr(xa-x[i])+sqr(ya-y[i]))+
sqrt(sqr(xb-x[j])+sqr(yb-y[j])))/vfoot+
path[i,j]/vtrain;
if t<min then begin
min:=t;k:=i;l:=j;
end;
end;
writeln(min:0:7);
if l=0 then
writeln(0)
else if k=l then
writeln(1,' ',k)
else begin
i:=1;route[1]:=l;
repeat
inc(i);
l:=pre[k,l];
route[i]:=l;
until l=k;
write(i);
for j:=i downto 1 do
write(' ',route[j]);
writeln;
end;
end.
