def linsearch(lookingFor, mylist):
counter = 1
length = len(mylist)
for each in mylist:
	if each == lookingFor:
		print("found at " + str(counter))
		return counter
	else:
		counter = counter + 1
		if counter = length:
			print("not found")
			return -1
thislist = [12,32,13,213,12,3,23,21,312]
whatToFind = 3
linsearch(whatToFind, thislist)