var n,i:byte;
    x,y: real;
    max,mix,may,miy:real;
begin
readln(n);
for i:=1 to n do
begin
readln(x,y);
if i=1 then begin
           max:=x;mix:=x;may:=y;miy:=y;
           end else
           begin
           if max<x then max:=x;
            if mix>x then mix:=x;
              if may<y then may:=y;
              if miy>y then miy:=y; 
           end;
end;
writeln("dinh tren trai: (",max,",",miy,") ;");
writeln("dinh duoi phai: (",mix,",",may,") ;");
readln;
end.

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

NQ==

5