#Zadanie 1
def generator(arg1="79-900", arg2="80-155"):
	a1 = int(arg1[:2])
	b1 = int(arg1[3:6])
	a2 = int(arg2[:2])
	b2 = int(arg2[3:6])
	for x in range(a1, a2 + 1):
		if x == a1:
			for y in range(b1 + 1, 1000):
				print(x, "-", y)
		else:
			for y in range(0, b2):
				if y < 10:
					print(x, "-", "00" + str(y))
				elif y < 100:
					print(x, "-", "0" + str(y))
				else:
					print(x, "-", y)

generator()

#Zadanie2
def brakujace_elementy(al, arg):
	l = []
	for x in range(1, arg + 1):
		l += [x]
	print(set(l) - set(al))

brakujace_elementy([2, 3, 7, 4, 9], 10)

#Zadanie3
def skok():
	l = []
	for x in range(20, 56):
		if x % 5 == 0:
			l += [x / 10]
	print(l)

skok()