symbol trig = C.4			
symbol range = w6 		
main:
label_10:
		pulsout trig,2 			
          	pulsin trig,1,w6	
	        pause 20			
		let w6 = w6 * 10 / 58
		let  b0 = b12
		if b13 = 0 then ultra_0
		let  b0  = 255
	      
ultra_0:

		if w6> 30 then label_22
	        servo 1, 200
		servo 2, 100
		if w6< 30 then label_10
	      
		

label_22:	servo 1, 150
		servo 2, 200
		goto main