Program project1;
procedure Input(var x1, y1, x2, y2, r1, r2:real);
{процедура ввода}
begin
write('vvedite x1='); readln(x1);
write('vvedite y1='); readln(y1);
write('vvedite x2='); readln(x2);
write('vvedite y2='); readln(y2);
write('vvedite r1='); readln(r1);
write('vvedite r2='); readln(r2);
end;
procedure Output(x1, y1, x2, y2, r1, r2:real);
{процедура вывода}
var d:real;
begin
d:=sqrt(sqr(x1-x2)+sqr(y1-y2));
if (x1=x2) and (y1=y2) and (r1=r2) then writeln('sovpadaut')
else if d=r1+r2 then writeln('vneshnee kasanie')
else if d=abs(r1-r2) then writeln('vnutrennee kasanie')
else if d>r1+r2 then writeln('ne peresekautsya' )
else if d<r1+r2 then writeln('peresekautsya v dvuh tochkah')
else writeln('odna v drugoy');
end;
var
x1, y1, x2, y2, r1, r2, d:real;
begin
Input(x1, y1, x2, y2, r1, r2);
Output(x1, y1, x2, y2, r1, r2);
ReadLn;
end.