.global	main
	.type	main, @function
main:
	ldi r16,255
	ldi r18,0

startloopnol:
	out 0x18,r18;port B
startloop:
	in r17,0x12;port D
	nop
	nop;na vsyakiy sluchay
	nop
	cpi r17,0
	breq startloopnol
	out 0x18,r16;port B
	rjmp startloop