program figure;

{$APPTYPE CONSOLE}

uses
  math;

var x1,y1,x2,y2,x3,y3,x4,y4,x5,y5,x6,y6,x7,y7,x8,y8:integer;
a,b,c,d:double;

begin
assign(input, 'input.dat');
reset(input);
read(x1,y1,x2,y2,x3,y3,x4,y4,x5,y5,x6,y6,x7,y7,x8,y8);
close(input);
assign(output, 'output.ans');
rewrite(output);
a:=sqrt(power(x1-x2,2)+power(y1-y2,2));
b:=sqrt(power(x3-x4,2)+power(y3-y4,2));
c:=sqrt(power(x5-x6,2)+power(y5-y6,2));
d:=sqrt(sqr(x7-x8)+sqr(y7-y8));
//writeln(a:0:1,' ',b:0:1,' ',c:0:1,' ',d:0:1);
if (a=b) and (b=c) and (c=d) then writeln('SQUARE') else
if (a=b) and (c=d)  or (a=c) and (b=d)then writeln('RECTANGLE') else
if
(((a=b) and (c>d)and (c<a+b+d)) or  ((a=b)and(d>c) and (d<a+b+c)))or
(((a=c) and (b>d)and(b<a+c+d)) or  ((a=c)and(d>b) and (d<a+b+c)))or
(((a=d) and (b>c)and(b<a+c+d)) or  ((a=d) and (c>b)and (c<a+b+d)))or
(((b=c) and (a>d)and (a<b+c+d)) or  ((b=c) and (d>a)and (d<a+b+c)))or
(((b=d) and (a>c)and (a<b+c+d)) or  ((b=d) and (c>a)and (c<a+b+d)))or
(((c=d) and (a>b)and (a<b+c+d)) or  ((c=d) and (b>a)and (b<a+c+d)))
then
writeln('TRAPEZOID') else
if (a<b+c+d) and (b<a+c+d) and (c<a+b+d) and (d<a+b+c) then
writeln('QUADRANGLE') else
if (a>=b+c+d ) or  (b>=a+c+d)  or  (c>=a+b+d)  or  (d>=a+b+c) then
writeln('LAMAN')
else writeln('TRIANGLE');
close(output);
end.