masm
model	small

.data
l db ?
r db ?

.code
main:

mov ah,1h
int 21h

mov l,al

int 21h
cmp al,'>'
je s1



s1:
int 21h
cmp al,'='
je s1
mov r,al
mov al,l
sub al,r

int 21h
jc p1
mov dl,'t'
mov ah,2h
int 21h
jmp	fin

p1:
mov dl,'f'
mov ah,2h
int 21h


fin:
mov	ax,4c00h
int	21h
end main
code ends