{$APPTYPE CONSOLE}
var i,j,n:integer;l:real;f:text;
x,y,R:array [1..10000] of integer;
begin
assign(f,'Circle.dat');reset(f);
readln(f,n);
for i:=1 to n do readln(f,x[i],y[i],R[i]);
close(f);
assign(f,'Circle.sol');rewrite(f);
for i:=1 to n-1 do
for j:=i+1 to n do begin
l:=sqrt(sqr(x[j]-x[i])+sqr(y[j]-y[i]));
if (l>=abs(R[i]-R[j])) and (l<=(R[i]+R[j])) then begin write(f,j,' ',i);close(f);halt;end;
end;
if (l<abs(R[i]-R[j])) or (l>(R[i]+R[j])) then write(f,'0');
close(f);
end.