#test 1 question 1

START  = 'atg'
END1 = 'taa'
END2 = 'tag'
END3 = 'tga'

def sortf(a,b,c):
	if(a>b):
		temp=a
		a=b
		b=temp
	if(b>c):
		temp=b
		b=c
		c=temp
	if(a>b):
		temp=a
                a=b
                b=temp
	return a, b, c
		
		
	
def main():
	dna = input("enter dna seq ")
	start_i = dna.find(START)
	print("start ", start_i)
	e1 = dna.find(END1, start_i+1)
	e2 = dna.find(END2, start_i+1)
	e3 = dna.find(END3, start_i+1)
	print("end1 end2 end3 ", e1, e2, e3)
	e1, e2, e3 = sortf(e1, e2, e3)
	if(e1!=-1):
		end_i = e1
		orf=dna[start_i: e1]
	elif(e2!=-1):
		end_i = e2
		orf = dna[start_i: e2]
	else:
		end_i = e3
		orf=dna[start_i:e3]
	print("END ", end_i)
	print("ORF ", orf)

	
		

main()